Simplify; (sinx-cosx)/[sin^2(x)-cos^2(x)]
http://www.wolframalpha.com/input/?i=(sinx-cosx)%2F%5Bsin%5E2(x)-cos%5E2(x)%5D
your answer would be in alternative forms
factor the denominator first ( its the difference of 2 squares)
then you can take out common factors
can you do that?
I am trying right now @welshfella
ok
It brought me back to where I was in the beginning @welshfella
sin^2 x - cos ^2 x = (sin x + cos x)(sin x - cos x)
so we have sin x - cos x ------------------------- (sin x + cos x)(sin x - cos x)
then it equals to secx+cosecx, right?
NO now compare the top to the bottom - what is common to both?
sinx-cosx
right so that leaves 1 / (sinx + cos x)
- which does NOT equal cosec x + sec x
thank you so much @welshfella
yw
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