Recommended Questions
- सिद्ध कीजिये- sin^4theta+cos^4theta=1-1/2sin^(2)2theta
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- If cos^4theta-sin^4theta=2/3 then 2cos^2theta-1=
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- sin^2theta+cos^4theta=cos^2theta+sin^4theta
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- sin^4theta+2sin^2thetacos^2theta=1-cos^4 theta
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- If sintheta+sin^2theta=1 , prove that cos^2theta+cos^4theta=1
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- Prove that: 1+cos^2 2theta=2(cos^4theta+sin^4theta)
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- Prove that 1+cos^2 2theta=2(cos^4theta+sin^4theta)
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- Prove that sin^4theta+cos^4theta=1-2sin^2thetacos^2theta .
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- Prove that sin^4theta-cos^4theta=sin^2theta-cos^2theta .
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