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Evaluate the following expression : sin^...

Evaluate the following expression : `sin^(2).(pi)/(12)+sin^(2).(3pi)/(12)+sin^(2).(5pi)/(12).`

Text Solution

Verified by Experts

The correct Answer is:
`=3`
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  • sin^(2)pi/8+sin^(2)(3pi)/(8)+sin^(2)(5pi)/(8)+sin^(2)(7pi)/(8)=?

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  • cos(pi/12)+sin^2((3pi)/12)+sin^2((9pi)/12)+cos((11pi)/12)=...

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