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Prove that : ([sin(7x)+sin(5x)]+[sin(9...

Prove that :
`([sin(7x)+sin(5x)]+[sin(9x)+sin(3x)])/([cos(7x)+cos(5x)]+[cos(9x)+cos(3x)])=tan(6x)`

Text Solution

Verified by Experts

The correct Answer is:
`tan(6x)`
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