Can someone PLEASEEEEEE help me prove this trig identity.
I did it down to where I have
LS:
sinx/cosx
RS:
-sinx
I am not sure where I went wrong,
can someone please help
LHS:
For numerator use formula
a^2 - b^2 = (a-b)(a+b)
So
cos^2(x) - sin^2 (x) = (cos(x) - sin(x)) (cos(x) + sin(x))
Denominator
cos^2(x) +cos(x)sin(x) = cos(x) (cos(x) +sin(x))
Divide numerator by denominator
The things in bold get cancelled
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One more thing try to avoid writing like thissssssss
Adarsh