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A N EXCEL PUBLICATION-TRIGONOMETRIC FUNCTIONS-QUESTION BANK
- prove the following (sinx-sin3x)/(sin^2x-cos^2x)=2sinx
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- prove the following (cos4x+cos3x+cos2x)/(sin4x+sin3x+sin2x)=cot3x
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- Prove that cotx cot2x -cot2xcot3x-cot3xcotx=1
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- Prove that tan4x=(4tanx(1-tan^2x))/(1-6tan^2x+tan^4x)
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- Prove that 1-8sin^2Acos^2A=cos4A
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- Prove that cos6x=32cos^6x-48cos^4x+18cos^2x-1
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- Suppose that costheta=-1/2 and theta is in the 2nd quadrant.Fill in th...
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- Suppose that costheta=-1/2 and theta is in the 2nd quadrant prove tha...
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- Match the following:
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- Nikolas is asked to prove that cos^2 x+cos^4 x=1 if sinx+sin^2x=1 He p...
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- Given that three numbers a,b,c are in G.P.If b^2=ac Prove that cot^2 3...
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- Match the following:
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- Prove that sin105^@+cos105^@=cos45^@
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- Choose the correct answer from the bracket and fill in the blank sin(B...
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- Prove that cosAsin(B-C)+cosBsin(C-A)+cosCsin(A-B)=0
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- A wheel is rotated pi/2 radians. Convert the angle of rotation into de...
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- A wheel is rotated pi/2 radians. Convert the angle of rotation into de...
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- Evaluate the following tan((13pi)/3)
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- Given that sinx+siny=a and cosx+cosy=b rajan derived the value of tan(...
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- Prove that cotA-tanA=2cotA
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