Any Pro Trig solvers out there?
4. Show: a sin x + b sin x = sqrt(a^2+b^2) sin (x+ alpha) where tan (alpha) = b/a
5. If k cos theta = cos (theta-alpha), show that tan theta = k cosec alpha - cot alpha
6. Prove:
sine(A-B) + sine (B-C) + sine (C-A) = 0
------------ ------------- --------------
cosA*cosB cosB*cosC cosC*cosA
I only managed to get somewhere for number 6. If I did it correctly, I stopped at:
2 tan A + 2 tan B + 2 tan C = 0
February 20, 2012
7 Comments • Newest first
[quote=Nekoshi]http://imageshack.us/photo/my-images/694/trig.pdf/
Tell me if this works. Sorry about the last one. I didn't have enough time to properly format it, and the standard formatting makes it go off-page.[/quote]
Genius! Thank you very much!
It should...if the hosting site is a general file sharing site, it should be fine.
Oh boy, establishing identities...
Trigonometry wasn't really too hard but I completely hated proving identities with a passion.
It's mostly just algebraic manipulation with clever uses of the definition of trigonometric identities (and sum/differences identities I'm guessing for 5 and 6) but it really is a pain in the ass.
[quote=NotNotKelly]i'm srry but i can comment negatively if i want and u should rlly expect it on basil, ur prob new.
and yes ican't do it[/quote]
I appreciate your honesty. Anyhow, yes I do know that some basilers do that. My response is a stubborn comeback, no matter how dumb I say it, or for what sake I'm doing it for. I'm not really new tho.
[quote=NotNotKelly]i'm srry but i can comment negatively if i want and u should rlly expect it on basil, ur prob new.
and yes ican't do it[/quote]
Preach it sister!
[quote=NotNotKelly]haha u hvae to prove sucks for u[/quote]
Which clearly means that you lack the ability to do this, like me. If you want to comment, comment nicely, without, let's say, [i]using[/i] sarcasm or derogatory terms
I think I'm going to go play Skyrim now... screw math.