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Prove that, 3sin""(pi)/(6)sec""(pi)/(3)-...

Prove that, `3sin""(pi)/(6)sec""(pi)/(3)-4sin""(5pi)/(6)cot""(pi)/(4)=1`

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The correct Answer is:
`=2-4 xx 1/2 =1 =R.H.S.`
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