SOLUTION: verify the following identity -tanx cosx =sin(-x)

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Question 18355: verify the following identity
-tanx cosx =sin(-x)

Answer by kapilsinghi(68) About Me  (Show Source):
You can put this solution on YOUR website!
-tanx cosx =sin(-x)
-(sinx/cosx) cosx =sin(-x)
-(sinx) =sin(-x)
which is true
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