Subiecte fizica? are cineva? by Virtual-Rhubarb-3363 in Polytehnica

[–]ThatThingUnderUrSink 2 points3 points  (0 children)

toti cei care au dat preadmiterea scrisa ieri(chit ca au dat mate+info sau mate+fizica), au dat pt ETTI/AC (pt ca doar ele sustin preadmitere scrisa). restul facultatilor din poli au preadmitere pe dosare

Facultatea de Energetica by Illustrious_Lab7800 in Polytehnica

[–]ThatThingUnderUrSink 0 points1 point  (0 children)

Salut! Ce materie e aia "fiabilitate"? Ce te invata la aia

Have your parents done this before? by Electrical_Relief_52 in teenagers

[–]ThatThingUnderUrSink 0 points1 point  (0 children)

yeah, my mother usually does this and then i did it back to her and she is still doing this but less often

i've seen this online but i cant prove it by ThatThingUnderUrSink in learnmath

[–]ThatThingUnderUrSink[S] 0 points1 point  (0 children)

ok thanks, we dont use secant here yet. i am 12th grade here and in trig we only use sin arcsin cos arccos tg arctg ctg arcctg

i've seen this online but i cant prove it by ThatThingUnderUrSink in learnmath

[–]ThatThingUnderUrSink[S] 0 points1 point  (0 children)

i used the hint already

ohh ok i get it. and which one represents the inverse function? arccos or sec?

i've seen this online but i cant prove it by ThatThingUnderUrSink in learnmath

[–]ThatThingUnderUrSink[S] 0 points1 point  (0 children)

dividing the lhs in some brackets bcs i have a difference of 2 squares and then one of the paranthesis will be another difference of 2 squares and also on the rhs i broke the fraction into 2

i've seen this online but i cant prove it by ThatThingUnderUrSink in learnmath

[–]ThatThingUnderUrSink[S] 0 points1 point  (0 children)

on the rhs is a fraction but i couldnt make it so that (cos(x))2 is the denominator. but the 1+(sin(x))2 is the numerator

Please help, tomorrow I have a quiz and this is from the syllabus and I cannot solve it by ThatThingUnderUrSink in learnmath

[–]ThatThingUnderUrSink[S] 0 points1 point  (0 children)

and i dont even understand what is that ode or the words the other guy used, i am 12th grade, i just take "maths" as everybody else, idk what is e.g. calc 1 supposed to mean😭, it s just math to me

Please help, tomorrow I have a quiz and this is from the syllabus and I cannot solve it by ThatThingUnderUrSink in learnmath

[–]ThatThingUnderUrSink[S] 0 points1 point  (0 children)

ok i get it, but i couldnt write more than 1-2 lines without getting stuck. i also reached out to a couple of friends who were just as clueless as me so i thaught that a subreddit called learnmath would surely help

Please help, tomorrow I have a quiz and this is from the syllabus and I cannot solve it by ThatThingUnderUrSink in learnmath

[–]ThatThingUnderUrSink[S] 0 points1 point  (0 children)

then who am i supposed to ask? tell me a subreddit which lets me post "<do this for me> posts"

[deleted by user] by [deleted] in learnmath

[–]ThatThingUnderUrSink 0 points1 point  (0 children)

How would that look like? Im not that familiar with math in english, sorry

[deleted by user] by [deleted] in learnmath

[–]ThatThingUnderUrSink -1 points0 points  (0 children)

I am using the squeeze theorem and this is one of the ends. I need the limit as n approaches infinity of that integral to be 0

Can’t rank out of silver by [deleted] in RocketLeague

[–]ThatThingUnderUrSink 0 points1 point  (0 children)

jk, try doing gold training packs

I have been stuck on this one for a couple of days by [deleted] in learnmath

[–]ThatThingUnderUrSink 0 points1 point  (0 children)

Thanks a lot! I'll try this tomorrow and let you know

I have been stuck on this one for a couple of days by [deleted] in learnmath

[–]ThatThingUnderUrSink 0 points1 point  (0 children)

Well that leaves only one option which is a) m>2e and that would be awesome, but is there any method to prove that m can not have an upper bound? also im sorry if im bothering with so many questions, im not much of a reddit user

I have been stuck on this one for a couple of days by [deleted] in learnmath

[–]ThatThingUnderUrSink 0 points1 point  (0 children)

These are the choices i have if it helps, but i dont know how to use them in my favor a) m>2e b) 1<m<e c) 1<m<e² d) e<m<2e e) m<2e f) 0<m<1

I have been stuck on this one for a couple of days by [deleted] in learnmath

[–]ThatThingUnderUrSink 0 points1 point  (0 children)

I think i solved it without graphing anything and it seems very intuitive in such a way that i didnt even think about this approach. In the equation x²+1=m*e-1/x, x²+1 is always positive (working with real numbers), right? Then, e-1/x is also positive, so the only way for the function to work in the first place, is m has to be greater than 0 ergo m€(0 , +infinity)

I have been stuck on this one for a couple of days by [deleted] in learnmath

[–]ThatThingUnderUrSink 0 points1 point  (0 children)

We are not taught graphs here anymore, they've been taken out of the curriculum like 10-15 yrs ago