SOLUTION: Can you please help me verify the identity tan2x=-2tanx/sec^2x-2? Thanks!
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Question 997984: Can you please help me verify the identity tan2x=-2tanx/sec^2x-2? Thanks!
Found 2 solutions by solver91311, lwsshak3:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
\left(\frac{\cos^2x}{1\ -\ 2\cos^2x}\right))
John
My calculator said it, I believe it, that settles it
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Can you please help me verify the identity tan2x=-2tanx/sec^2x-2
start with right side
-2tanx/sec^2x-2
=tan2x
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