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Prove that tan4x=(4tanx(1-tan^(2)x))/(...

Prove that
`tan4x=(4tanx(1-tan^(2)x))/(1-6tan^(2)x+tan^(4)x)`

Text Solution

Verified by Experts

The correct Answer is:
`(4tanx(1-tan^(2)x))/(1-6tan^(2)x+tan^(4)x)`
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