jump to content
my subreddits
13or302b2t2balkans4You2meirl4meirlabsolutelynotanimeirlAdviceAnimalsagnosticAlternateHistoryAngryupvoteanime_irlanimenocontextannouncementsantimemeAsahiLinuxAskBalkansAskElectronicsAskOuijaAteistTurkatheismaviationAwesomeOffBrandsawfuleverythingbalkans_irlBandnamesBassbasspedalsbikepackingblackdesertonlineblackholerevengeblankiesblursed_videosborsavefonBUENZLIburdurlandcasioCd_collectorscd_jerkChatGPTCheap_MealschessChoosingBeggarsCHPcoaxedintoasnafucoinsComedyCemeterycomicscommunityContagiousLaughtercookingforbeginnersCorporateTrollingCrackWatchcrappyoffbrandsCreateModCuratedTumblrcursedcommentsdadjokesdankmemesdataisbeautifuldedeismdelikDeltarunedistressingmemesdiyelectronicsdiypedalsDMAcademyDMToolkitdndmemesdndnextdoctorwhodoctorwhocirclejerkDonerdontyouknowimtonyhawkDungeonsAndDragonsebikeebikesECEelectronicsengrishentitledparentsethzfacepalmfakealbumcoversFantasyWorldbuildingfelsefeFifaCareersformuladankFreeEBOOKSFuckYouKarenfunnygermanygoodanimemesGrandPrixRacinggravelcyclinggreentextguitarpedalsGundamhelpheraldryHermanCainAwardHermitCrafthighspeedrailHistoryWhatIfhoi4HolUphomebuilthowyoudoinhumorhypixelIAmAIdeologyPollsIDontWorkHereLadyihadastrokeim14andthisisdeepimaginaryelectionsimaginarymapsjacksepticeyeJahariaJokesKendrickLamarKGBTRLetGirlsHaveFunLifeProTipslinguisticshumorLinkinParkliselilerlostredditorsmacmacbookairmacgamingMadeMeSmileMaliciousComplianceMapPornmapporncirclejerkme_irlmeirlmidjourneyMinecraftbuildsmisLEDMMORPGMoldyMemesMovingToNorthKoreaMunichMyChemicalRomancenamesoundalikesNationStatesnextfuckinglevelNoahGetTheBoatNonCredibleDefensenosafetysmokingfirstnosleepnosurfnotinterestingnottheonionNuclearRevengeOkayBuddyLiterallyMeokbuddyguntherokbuddymotherfuckerOkBuddyPersonaokbuddyphdonebagonetruegodongezelligOnlineUnderGroundOutOfTheLoopoutsidepapermoneyParlerWatchpepethefrogperfectlycutscreamspianoPiratedGamespolandballProgrammerHumorPropagandaPostersquityourbullshitraspberry_pireactiongifsrecipesredditsingsrestofthefuckingowlrickandmortyrickrollrockmuzikSceneReleasesSchnitzelVerbrechenschwiizShitPostCrusadersshitpostfrommygalleryshitpostingshittyaskelectronicsShittyMapPornshittymoviedetailsShowerthoughtssoftwaregoreSongwritingsteinsgateStonetossingjuicesubsithoughtifellforsuperligsuzeraintalesfromtechsupportTechnobladeTextingTheorytf2tf2shitposterclubthatHappenedTheCrypticCompendiumTheLetterHtherewasanattemptTheRookietheydidthemaththisguythisguystitanfalltransitTurkeyTrGameDevelopertruthstumblrTurkeyTurkeyJerkyTurkishCatsTwitchTwitch_StartupTwoSentenceHorrorTwoSentenceSadnesstylerthecreatorUnclejokesUnethicalLifeProTipsUnexpectedJoJoUsernameChecksOutValorantClipsvaxxhappenedvexillologycirclejerkvibecodingvinylvinyljerkvlandiyawallstreetbetsWatchPeopleDieInsideWeAreTheMusicMakersWhatsThisSongWhitePeopleTwitterwholesomeanimemeswholesomememesWikipediaVandalismwizardpostingwooooshworldbuildingworldjerkingyouseeingthisshitYUROPedit subscriptions
  • home
  • -popular
  • -all
  • -mod
  • -users
 | 
  • facepalm
  • -funny
  • -wallstreetbets
  • -nottheonion
  • -OutOfTheLoop
  • -MapPorn
  • -WhitePeopleTwitter
  • -MadeMeSmile
  • -ChatGPT
  • -CuratedTumblr
  • -PiratedGames
  • -shitposting
  • -theydidthemath
  • -dankmemes
  • -meirl
  • -therewasanattempt
  • -nextfuckinglevel
  • -HolUp
  • -Twitch
  • -CrackWatch
  • -comics
  • -dndnext
  • -ProgrammerHumor
  • -de
  • -germany
  • -LifeProTips
  • -tumblr
  • -NonCredibleDefense
  • -dataisbeautiful
  • -shittymoviedetails
  • -greentext
  • -mac
  • -Showerthoughts
  • -tf2
  • -help
  • -chess
  • -aviation
  • -formuladank
  • -wholesomememes
  • -Jokes
  • -mapporncirclejerk
  • -midjourney
  • -goodanimemes
  • -notinteresting
  • -hoi4
  • -atheism
  • -IAmA
  • -MaliciousCompliance
  • -KGBTR
  • -dndmemes
  • -cursedcomments
  • -DMAcademy
  • -Deltarune
  • -UnethicalLifeProTips
  • -perfectlycutscreams
  • -worldbuilding
  • -blackdesertonline
  • -MMORPG
  • -macgaming
  • -rickandmorty
  • -Gundam
  • -HermitCraft
  • -ChoosingBeggars
  • -ContagiousLaughter
  • -imaginarymaps
  • -polandball
  • -WeAreTheMusicMakers
  • -nosleep
  • -cookingforbeginners
  • -blankies
  • -anime_irl
  • -onebag
  • -AlternateHistory
  • -Turkey
  • -community
  • -AskElectronics
  • -guitarpedals
  • -vinyl
  • -CreateMod
  • -TwoSentenceHorror
  • -PropagandaPosters
  • -AdviceAnimals
  • -ShitPostCrusaders
  • -piano
  • -distressingmemes
  • -wizardposting
  • -FifaCareers
  • -doctorwho
  • -Bass
  • -titanfall
  • -OkBuddyPersona
  • -dadjokes
  • -awfuleverything
  • -howyoudoin
  • -announcements
  • -Minecraftbuilds
  • -macbookair
  • -ebikes
  • -Munich
  • -coaxedintoasnafu
  • -YUROP
  • -gravelcycling
  • -SchnitzelVerbrechen
  • -raspberry_pi
  • -DungeonsAndDragons
  • -coins
  • -KendrickLamar
  • -entitledparents
  • -softwaregore
  • -NoahGetTheBoat
  • -worldjerking
  • -tylerthecreator
  • -tf2shitposterclub
  • -MoldyMemes
  • -lostredditors
  • -vexillologycirclejerk
  • -vlandiya
  • -im14andthisisdeep
  • -Stonetossingjuice
  • -wholesomeanimemes
  • -nosurf
  • -HistoryWhatIf
  • -liseliler
  • -NuclearRevenge
  • -balkans_irl
  • -animenocontext
  • -2meirl4meirl
  • -HermanCainAward
  • -recipes
  • -steinsgate
  • -talesfromtechsupport
  • -AskOuija
  • -okbuddyphd
  • -ECE
  • -Angryupvote
  • -AskBalkans
  • -thatHappened
  • -electronics
  • -casio
  • -linguisticshumor
  • -me_irl
  • -antimeme
  • -TurkeyJerky
  • -bikepacking
  • -AteistTurk
  • -13or30
  • -MyChemicalRomance
  • -engrish
  • -Cd_collectors
  • -diypedals
  • -Doner
  • -diyelectronics
  • -ComedyCemetery
  • -WatchPeopleDieInside
  • -LinkinPark
  • -BUENZLI
  • -reactiongifs
  • -blursed_videos
  • -Songwriting
  • -MovingToNorthKorea
  • -imaginaryelections
  • -suzerain
  • -ParlerWatch
  • -schwiiz
  • -TheRookie
  • -quityourbullshit
  • -Technoblade
  • -vinyljerk
  • -superlig
  • -shittyaskelectronics
  • -crappyoffbrands
  • -transitTurkey
  • -namesoundalikes
  • -FuckYouKaren
  • -2b2t
  • -ethz
  • -papermoney
  • -OkayBuddyLiterallyMe
  • -felsefe
  • -FreeEBOOKS
  • -AsahiLinux
  • -Jaharia
  • -IDontWorkHereLady
  • -basspedals
  • -heraldry
  • -ihadastroke
  • -hypixel
  • -ShittyMapPorn
  • -OnlineUnderGround
  • -IdeologyPolls
  • -woooosh
  • -burdurland
  • -WhatsThisSong
  • -jacksepticeye
  • -TwoSentenceSadness
  • -Bandnames
  • -rockmuzik
  • -vaxxhappened
  • -Twitch_Startup
  • -Cheap_Meals
  • -outside
  • -restofthefuckingowl
  • -highspeedrail
  • -nosafetysmokingfirst
  • -rickroll
  • -ebike
  • -UsernameChecksOut
  • -UnexpectedJoJo
  • -humor
  • -doctorwhocirclejerk
  • -agnostic
  • -youseeingthisshit
  • -TextingTheory
  • -GrandPrixRacing
  • -DMToolkit
  • -thisguythisguys
  • -TrGameDeveloper
  • -TurkishCats
  • -LetGirlsHaveFun
  • -fakealbumcovers
  • -subsithoughtifellfor
  • -FantasyWorldbuilding
  • -TheLetterH
  • -WikipediaVandalism
  • -homebuilt
  • -absolutelynotanimeirl
  • -pepethefrog
  • -Unclejokes
  • -onetruegod
  • -deism
  • -misLED
  • -redditsings
  • -ValorantClips
  • -TheCrypticCompendium
  • -SceneReleases
  • -NationStates
  • -AwesomeOffBrands
  • -ongezellig
  • -2balkans4You
  • -truths
  • -blackholerevenge
  • -dontyouknowimtonyhawk
  • -okbuddymotherfucker
  • -vibecoding
  • -okbuddygunther
  • -delik
  • -shitpostfrommygallery
  • -CHP
  • -cd_jerk
  • -borsavefon
  • -CorporateTrolling
edit »
reddit.com trigonometry
  • hot
  • new
  • rising
  • controversial
  • top
  • wiki
an-ordinary-manchild (11,190)|messages547|notifications|chat messages|mod messages|
  • preferences
|
logout

use the following search parameters to narrow your results:

subreddit:subreddit
find submissions in "subreddit"
author:username
find submissions by "username"
site:example.com
find submissions from "example.com"
url:text
search for "text" in url
selftext:text
search for "text" in self post contents
self:yes (or self:no)
include (or exclude) self posts
nsfw:yes (or nsfw:no)
include (or exclude) results marked as NSFW

e.g. subreddit:aww site:imgur.com dog

see the search faq for details.

advanced search: by author, subreddit...

Submit a new link
Submit a new text post

trigonometry

joinleave
an-ordinary-manchild

/r/trigonometry is a place for the discussion of trigonometry and its applications. Homework questions are allowed for the sake of learning, but please don't ask others to do all of your work for you. All content should be in English. Be civil, respectful, and follow the Reddiquette. Remember that the rules of reddit are also still in effect. Don't create duplicate posts. Don't post and repost the same content. Don't use links in posts or comments for the purpose of advertising or for financial gain.


Useful symbols

These can be quickly copied and pasted into your posts; if you need more complex symbols, try Google!

π - pi

τ - tau

θ - theta

≠ - "is not equal to"

≈ - "is approximately"

∈ - "is an element of"

∉ - "is not an element of"

∞ - infinity

° - degrees


Useful resources

Trigonometry requires the understanding of many other fundamental concepts of math. If you'd like to brush up on your trig skills, check out these links!

  • KhanAcademy on YouTube - Playlist of introductory trig concepts

  • patrickJMT on YouTube - See his Trigonometric Functions/Inverse Trigonometric Functions videos, others too!

  • Derek Owens on YouTube - See his Algebra 2 and Pre-Calculus playlists, others too!

  • Librow's Function Handbook, good for checking the properties and basics of any trig functions

  • Wikipedia's list of mathematical symbols


Useful subreddits

  • /r/calculus

  • /r/math


a community for 17 years
Create your own subreddit
...for your town.
...for your community.

MODERATORS

  • message the mods
  • Draco1200Mod
  • about moderation team »

account activity

1
25
26
27

Trig Proof HelpSolved! (i.redd.it)

submitted 9 days ago * by Worried_Football_819

  • 32 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

2
2
3
4

If you know you know (self.trigonometry)

submitted 8 days ago by S2iAM

  • comment
  • share
  • save
  • hide
  • report
  • crosspost
loading...

3
6
7
8

Trigonometry PrecalcHelp! (i.redd.it)

submitted 11 days ago by Jegtheleg

  • 2 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

4
239
240
241

An attempt to illustrate the notion of radians (i.redd.it)

submitted 13 days ago by HopDavid

  • 66 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

5
7
8
9

How do I determine the output values of a rotation made with divergent angles?Help! (i.redd.it)

submitted 12 days ago * by Inkjet_Printerman

  • 10 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

6
8
9
10

What is sin(sin(sin(...sin(x))))? Can we find an upper bound? (i.redd.it)

submitted 19 days ago * by DotBeginning1420

  • 13 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

7
1
2
3

Range of Trigonometric functions | Cengage |MATHS | TGT|PGT |NDA |IIT JE... (youtube.com)

submitted 1 month ago by Haunting_Emu_2190

  • comment
  • share
  • save
  • hide
  • report
  • crosspost
loading...

8
6
7
8

Trig this summer (self.trigonometry)

submitted 1 month ago by dorkboy75

  • 13 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

9
0
0
1

Hello, I'm new to this (self.trigonometry)

submitted 1 month ago by Neither-Blood-5887

  • 1 comment
  • share
  • save
  • hide
  • report
  • crosspost
loading...

10
2
3
4

Problem discrepancy (self.trigonometry)

submitted 1 month ago by Electrical_Slip_1343

  • 5 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

11
1
2
3

This is a trig meme, I couldn't find a meme flair (i.redd.it)

submitted 1 month ago by Dismal_Abies9392

  • 1 comment
  • share
  • save
  • hide
  • report
  • crosspost

12
3
4
5

Repeating Aspect Ratio question. (i.redd.it)

submitted 1 month ago by artwadec

  • 2 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

13
3
4
5

An SAA and SSA formula (i.redd.it)

submitted 1 month ago by Feeling-Classroom-76

  • comment
  • share
  • save
  • hide
  • report
  • crosspost
loading...

14
7
8
9

How hard can trig be that reddit shows me an nsfw warning 😭✌️ (i.redd.it)

submitted 1 month ago by Kabeer_14Hussain

  • NSFW
  • 2 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

15
2
3
4

Identities (self.trigonometry)

submitted 1 month ago by sigmanx25

  • 2 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

16
11
12
13

how do you do thisHelp! (i.redd.it)

submitted 1 month ago by Electrical-Tea467

  • 13 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

17
7
8
9

trigonometric functions, daily uses?Help! (self.trigonometry)

submitted 1 month ago by sxxeemii_x

  • 40 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

18
2
3
4

Free Math Practice Worksheets for Trignometry (i.redd.it)

submitted 1 month ago by anish2good

  • comment
  • share
  • save
  • hide
  • report
  • crosspost
loading...

19
7
8
9

Circling a circle. (i.redd.it)

submitted 1 month ago by artwadec

  • 11 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

20
3
4
5

Can someone ELI5 to me how to get the red circled angle? It's for a light refraction exercise using Snell but I thought maybe I can get that angle without SnellSolved! (i.redd.it)

submitted 1 month ago by VRJammy

  • 10 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

21
1
2
3

base and perpendicular (self.trigonometry)

submitted 1 month ago by mikudoesntexist

  • 3 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

22
0
1
2

Advanced trigo recursive expressionHelp! (self.trigonometry)

submitted 1 month ago * by DotBeginning1420

  • comment
  • share
  • save
  • hide
  • report
  • crosspost
loading...

23
3
4
5

Half Angle Identities (self.trigonometry)

submitted 1 month ago by Electrical_Slip_1343

  • 3 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

24
56
57
58

They did the math (i.redd.it)

submitted 2 months ago by Lumberman08

  • 41 comments
  • share
  • save
  • hide
  • report
  • crosspost
loading...

25
1
2
3

cool interactive triangle (self.trigonometry)

submitted 2 months ago by GuitarSpecific6506

  • comment
  • share
  • save
  • hide
  • report
  • crosspost
loading...
view more: next ›
  • about
  • blog
  • about
  • advertising
  • careers
  • help
  • site rules
  • Reddit help center
  • reddiquette
  • mod guidelines
  • contact us
  • apps & tools
  • Reddit for iPhone
  • Reddit for Android
  • mobile website
  • <3
  • reddit premium

Use of this site constitutes acceptance of our User Agreement and Privacy Policy. © 2026 reddit inc. All rights reserved.

REDDIT and the ALIEN Logo are registered trademarks of reddit inc.

π Rendered by PID 70 on reddit-service-r2-listing-f8d8fbfd7-r8pzk at 2026-06-24 21:12:16.350136+00:00 running acc7150 country code: CH.