Recommended Questions
- सिद्ध कीजिए कि cos^(2) A+ cos^(2) B - 2 cos A cos B cos ( A +...
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- Prove that: sin^2A=cos^2(A-B)+cos^2B-2cos(A-B)cosAcosBdot
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- let a=cos A+cos b-cos(A+B) and b=4sin((A)/(2))sin((B)/(2))cos((A+B)/(2...
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- sin ^ (2) A cos ^ (2) B + cos ^ (2) A sin ^ (2) B + sin ^ (2) A sin ^ ...
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- Prove that cos(A+B)cos(A-B)=cos^2A-sin^2B=cos^2B-sin^2A
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- Prove that: cos^2A+cos^2B-2cosA\ cos B cos\ (A+B)=sin^2(A+B)
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- सिद्ध कीजिए tan ^(2)A-tan^(2)B=(cos ^(2)B-cos ^(2)A)/(cos ^(2)B cos ^(...
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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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- सिद्ध कीजिए की: (i) sin (2n +1) A . sin A = sin ^(2) (n+1) A - sin ^(...
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