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Simply (sin75^(@)-sin15^(@))/(cos75^(@)+...

Simply `(sin75^(@)-sin15^(@))/(cos75^(@)+cos15^(@))`
Prove that
(a) ` (sin3A+sinA)SinA+(Cos3A-cosA)cosA=0`

(c) `(sin8thetacostheta-sin6 thetacos 3 theta)/(cos 2 theta cos theta-sin 3 thetasin4 theta)=tan 2 theta`

Text Solution

Verified by Experts

The correct Answer is:
`(1)/sqrt(3)`
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