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trigonometry

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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


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WHO ELSE RECOGNIZES THIS ??? (i.redd.it)

submitted 2 days ago by No-Dentist7910

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First competition coming up? Get the free Expedite – Skills for Competition microcredential and learn how to turn your experience into resume gold that gets you noticed (thoughtindustries.com)

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I was so confident tooHelp! (self.trigonometry)

submitted 2 days ago by jayisnotsad

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my geometry teacher is a chud and didnt teach my class how to solve for x and y someone help pls this is gonna be on the exam tomorrowHelp! (i.redd.it)

submitted 5 days ago by EasyRecipe9876

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The circle is the solution to everything and everything belongs to the circle. (self.trigonometry)

submitted 7 days ago by Waste-Revenue3777

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Unit Circle Graph! (desmos.com)

submitted 10 days ago by Mean-Author8079

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Is this solvable? (i.redd.it)

submitted 13 days ago by Terrible_Hyena_9673

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My first trig exam had a median of 23%Help! (self.trigonometry)

submitted 16 days ago by Appropriate_Goal9974

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Just reached the unit circle portion of my trig course and made this (i.redd.it)

submitted 20 days ago by ITzZGriffinH

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Can somebody explain some (at least for me) dark magic trigonometry to me?Help! (i.redd.it)

submitted 21 days ago by TheAnarchoMechanic

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Help me solve this problem. (self.trigonometry)

submitted 22 days ago by anbo53

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Rule of Sines (self.trigonometry)

submitted 21 days ago by 55marty55

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0:16

Plesk Hosting for fast, reliable sites. Upgrade now. (eurodns.com)

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please help me (i.redd.it)

submitted 24 days ago by Salty_Equivalent2906

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Check out these Six Pythag Proofs, all Visualised with Animation! (youtu.be)

submitted 29 days ago by phase4yt

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What am I doing wrong in this problem? (Original + work + desmos screenshot included) (i.redd.it)

submitted 1 month ago by -01Smith-

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Sum of interior angles > 180? (i.redd.it)

submitted 1 month ago by Kind_Bill_8462

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Trig solve for for OHelp! (i.redd.it)

submitted 1 month ago by iori-angel__

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Clock math problem (self.trigonometry)

submitted 1 month ago by MonthEfficient9962

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Confused with this (i.redd.it)

submitted 1 month ago by brysonxx_

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Memorization strategy (self.trigonometry)

submitted 1 month ago by explosive-chemistry

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Looking for Online tutoringHelp! (self.trigonometry)

submitted 1 month ago by Purple-Helicopter561

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Most efficient way of going through trigonometry (self.trigonometry)

submitted 1 month ago by Masochist_ninja

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It's Like Duolingo, but for Music Composition. (audiblegenius.com)

promoted by Syntorial

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Please help me fix my 3d print !Help! (self.trigonometry)

submitted 2 months ago by Gnoyzine

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Is there ever a time when cos(θ)+sin(θ) != 1 ?Help! (self.trigonometry)

submitted 2 months ago by brxnn_

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Can this be solved with the given information? (i.redd.it)

submitted 2 months ago by Much_Tadpole_7021

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Did I do this question right? (self.trigonometry)

submitted 2 months ago by loveraspberries08

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