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OBJECTIVE RD SHARMA-TRIGONOMETRIC RATIOS AND IDENTITIES-Chapter Test
- If tan((alphapi)/(4))=cot((betapi)/(4)), then
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- The roots of the equation 4x^2-2sqrt5 x +1=0 are .
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- The radius of the circle whose are of length 15\ pi cm makes an angle ...
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- If (cosA)/(cosB)=n and (sinA)/(sinB)=m,then (m^(2)-n^(2))sin^(2)B=
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- If tantheta+tan(theta+pi/3)+tan(theta-pi/3)=ktan3theta then k is equal...
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- If cos(theta+phi)= mcos(theta-phi), then prove that tan theta=(1-m)/(1...
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- alpha & beta are solutions of a cos theta+b sin theta=c(cosalpha != ...
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- Let n be a positive integer such that sin(pi/2n) + cos(pi/2n) = sqrt(n...
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- cos^(4)theta-sin^(4)theta is equal to
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- If tan alpha =m/(m+1) and tan beta =1/(2m+1) , then alpha+beta is equa...
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- tan alpha+2tan2alpha+4tan4alpha+8cot8alpha is equal to
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- If cos theta-4sintheta=1, the sintheta+4costheta=
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- If A+C=2B, then (cosC-cosA)/(sinA-sinC)=
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- If A+B=C, then cos^(2)A+cos^(2)B+cos^(2)C-2cosAcosBcosC=
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- If 5cosx+12cosy=13, then the maximum value of 5sinx+12siny is (...
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- If x=tan15^(@),y=cosec75^(@),z=4sin18^(@)
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- For all values of theta,3-costheta+cos(theta+(pi)/(3)) lie in the inte...
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- (tan8 0^(@)-tan1 0^(@))/tan70^(@)
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- If sinA+sinB=sqrt3(cosB-cosA),then sin3A+sin3B=
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- If alpha+beta+gamma=2 theta,then cos theta + cos(theta - alpha) + cos(...
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