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OBJECTIVE RD SHARMA-TRIGONOMETRIC RATIOS AND IDENTITIES-Exercise
- If cosA+cosB+cosC=0, then cos3A+cos3B+cos3C is equal to
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- Minimum value of cos2theta+costheta for all real value of theta is
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- cos9^@-sin9^@=
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- If y=(sin 3theta)/(sintheta), theta nen pi, then
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- If tan(picostheta)=cot(pisintheta),0lt thetalt(3pi)/(4), then sin(thet...
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- If tan(picostheta)=cot(pisintheta),"then the value of"sin(theta+(pi)/(...
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- 1+sinx+sin^(2)x+..."to"oo=2sqrt3 + 4, if x = ?
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- If sin(x-y)=cos(x+y)=1/2, the value of x and y lyingbetween 0^(@)and 9...
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- If alpha and beta be between 0 and (pi)/(2)and if cos(alpha+beta)=(12)...
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- If tan (alpha/2) and tan beta/2are the roots of the equation 8x^2-26x+...
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- 2x^(2) + 3x - alpha - 0 " has roots "-2 and beta " while the equation ...
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- If A+B+C=0, then the value of sum cot (B+C-A) cot (C+A-B) is equal to
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- In (0,pi//2)tan^(m)x+cot^(m)x attains
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- For -(pi)/(2)lttheta(pi)/(2),(sintheta+sin2theta)/(1+costheta+cos2thet...
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- If y tan (A+B+C) =x tan (A+B-C) = gamma then tan 2C=
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- Which of the following is not the qyadratic equation whose roots are c...
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- cos alphasin(beta-gamma)+cosbetasin(gamma-alpha)+cos gammasin(alpha-be...
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- sin47^(@)-sin25^(@)+sin61^(@)-sin11^(@)=
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- cos1+cos2+cos3+...+cos180
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- The value of (tan7 0^0-tan2 0^0)/(tan5 0^0)=
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