My book lacks answers and i suffer much confusion in this. So
here goes, but first quick question. How do i produce signs like
pi or theta on here like some of the experts do, along with
representing fractions as a fraction as opposed to for example
2x/4 I misspelled Identities also in title im aware of this :P
tan x csc x cos x =1 tan=sin x/cos x csc x= ? says something
like csc(-x)=-csc x cos x= 1/sec x so i get (sin x/cos x)(csc
x)(1/sec x)=1 and am stuck here, the csc identity confuses me To
type symbols and fractions and other notations, learn Latex ok
what about (4sin^2 x-1)/(2sin x+1)=2sin x-1 would it be (2sin
x-1)/(x+1) =2sin x-1 this is where i get lost again as im not
sure how to work the problem. seems like i could cancel out the
2sin x-1 from each side but it seems illegal First, I'm not sure
where you got the x + 1 in the denominator. Originally Posted by
Kromletch Typically you want to work on only one side of the
(suspected) identity. In this case Note that the numerator is in
the form . Can y