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tan^2x  tan^2x sin^2x = sin^2x
How in the world could you solve this?
 one year ago
 one year ago
tan^2x  tan^2x sin^2x = sin^2x How in the world could you solve this?
 one year ago
 one year ago

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TuringTestBest ResponseYou've already chosen the best response.0
\[\tan^2x\tan^2x\sin^2x=\tan^2x(1\sin^2x)\]and what is the identity for \(1\sin^2x\) ?
 one year ago

TuringTestBest ResponseYou've already chosen the best response.0
right, so now what do you have on the left?
 one year ago

haleyking345Best ResponseYou've already chosen the best response.0
tan^2xtan^2xsin^2x=tan^2x
 one year ago

TuringTestBest ResponseYou've already chosen the best response.0
no, I mean after what we just did...
 one year ago

TuringTestBest ResponseYou've already chosen the best response.0
\[\tan^2x\tan^2x\sin^2x=\tan^2x(1\sin^2x)=\tan^2x\cos^2x=?\]
 one year ago

TuringTestBest ResponseYou've already chosen the best response.0
use\[\tan x=\frac{\sin x}{\cos x}\]
 one year ago

haleyking345Best ResponseYou've already chosen the best response.0
that would leave you with sin^2x as the answer
 one year ago

TuringTestBest ResponseYou've already chosen the best response.0
which is what you have on the left, which proves the identity if you want a solution, the answer is \(\mathbb R\), but I think the point here was just to prove the identity.
 one year ago
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