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RD SHARMA-TRIGONOMETRIC IDENTITIES-All Questions
- If acostheta+bsintheta=m and asintheta-bcostheta=n , prove that a^2...
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- If sintheta+sin^2theta=1 , prove that cos^2theta+cos^4theta=1
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- If sectheta+tantheta=p , obtain the values of sectheta,tantheta and s...
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- Prove the following identities: (i)costhetasin(90^o-theta)+sinthetac...
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- Prove: (1-cos^2A)cos e c^2A=1
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- Prove: (1+cot^2A)sin^2A=1
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- Prove: tan^2thetacos^2theta=1-cos^2theta
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- Prove: cos e c\ thetasqrt(1-cos^2theta)=1
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- Prove: (sec^2theta-1)(cos e c^2theta-1)=1
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- Prove: tantheta+1/(tantheta)=sectheta\ cos e c\ theta
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- Prove: (costheta)/(1-sintheta)=(1+sintheta)/(costheta)
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- Prove: (costheta)/(1+sintheta)=(1-sintheta)/(costheta)
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- Prove: cos^2A+1/(1+cot^2A)=1
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- Prove: sin^2A+1/(1+tan^2A)=1
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- Prove: (1-costheta)/(sintheta)=(sintheta)/(1+costheta)
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- Prove: (sintheta)/(1-costheta)=cos e c\ theta+cottheta
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- Prove: (cos e c\ theta+sintheta)(cos e c\ theta-sintheta)=cot^2theta+c...
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- Prove: ((1+cot^2theta)tantheta)/(sec^2theta)=cottheta
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- Prove: (sectheta+costheta)(sectheta-costheta)=tan^2theta+sin^2theta
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- Prove: secA(1-sinA)(secA+tanA)=1
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