Recommended Questions
- सिद्ध करें कि cos 6^(@). Cos42^(@). Cos66^(@). Cos78^(@) = (1)/(16)
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- Prove that cos6^(@)*cos42^(@)*cos66^(@)cos78^(@)=(1)/(16)
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- Prove that: cos 78^0cos 42^0cos 36^0=1/8
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- 4\ cos 6^@ cos 42^@ cos 60^@ cos 78^@=
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- cos42^(@)+cos78^(@)+cos162^(@)=
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- A=cos20^(@)cos40^(@)cos60^(@)cos80^(@),B=cos60cos42^(@)cos66^(@)cos78^...
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- यदि x^(m).y^(n)=(x+y)^(m-n)" तो सिद्ध करें कि "(dy)/(dx)=(y)/(x)
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- यदि sin B = 1/2,"तो सिद्ध करें कि " 3 cos B - 4 cos^(3) B = 0
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- यदि cos theta = sqrt3/2, "तो सिद्ध करें कि " 3 sin theta - 4 sin^(3) ...
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