Recommended Questions
- सिद्ध करें कि cos60^(@)=1-2sin^(2)30^(@)=2 cos^(2)30^(@)-1
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- If A=30^(@), prove that sin2A=2sin A cos A=(2tan A)/(1+tan^(2)A)
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- Show that : sin 30^(@)=sqrt((1-cos60^(@))/(2))
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- cos^(2)30^@-sin^(2)30^@=cos60^@
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- Show that (i) cos60^(@)*cos30^(@)-sin60^(@)*sin30^(@)=cos90^(@) (i...
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- सत्यता की जाँच कीजिए- cos60^(@)=1-2 sin^(2)30^(@)=2 cos ^(2)30^(@)-1
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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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- यदि cos theta + sin theta = 1, "तब सिद्ध करें कि " cos theta - sin th...
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