SOLUTION: Tan(x)-sin(x).cos(x) / sin^2 (x) = tan(x)

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Question 889606: Tan(x)-sin(x).cos(x) / sin^2 (x) = tan(x)
Found 2 solutions by josgarithmetic, richwmiller:
Answer by josgarithmetic(39629) About Me  (Show Source):
You can put this solution on YOUR website!
You asked for help on this: Tan(x)-sin(x).cos(x) / sin^2 (x) = tan(x)
which looks like this as rendered: Tan%28x%29-sin%28x%29cos%28x%29%2Fsin%5E2%28x%29=tan%28x%29.
The dot needed to be removed because it will not allow rendering.


Working with exactly that:

tan%28x%29-sin%28x%29cos%28x%29%2F%28sin%28x%29sin%28x%29%29
tan%28x%29-cross%28sin%28x%29%29cos%28x%29%2F%28cross%28sin%28x%29%29sin%28x%29%29
tan%28x%29-cos%28x%29%2Fsin%28x%29
tan%28x%29-cot%28x%29

tan%28x%29-cot%28x%29%3C%3Etan%28x%29

The equation you asked is NOT an identity.

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
%28Tan%28x%29-sin%28x%29%2Acos%28x%29%29+%2F+sin%5E2+%28x%29+=+tan%28x%29
is an identity