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RD SHARMA-TRIGONOMETRIC IDENTITIES-All Questions
- cos^4A-sin^4A is equal to 2cos^2A+1 (b) 2cos^2A-1 (c) 2sin^2A-1 ...
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- (sintheta)/(1+costheta) is equal to (1+costheta)/(sintheta) (b) (1-...
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- (sintheta)/(1-cottheta)+(costheta)/(1-tantheta) is equal to (a) 0 (b) ...
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- The value of (1+cottheta-cos e c\ theta)(1+tantheta+sectheta) is (a...
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- (tantheta)/(sectheta-1)+(tantheta)/(sectheta+1) is equal to 2tanthet...
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- (cos e c\ theta-sintheta)(sectheta-costheta)(tantheta+cottheta) is equ...
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- If x=acostheta and y=bsintheta , then b^2x^2+a^2y^2= (a)a^2b^2 (b) a ...
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- If x=asectheta and y=btantheta , then b^2x^2-a^2y^2= (a)a b (b) ...
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- (cottheta)/(cottheta-cot3theta) + tantheta/(tantheta-tan3theta) is equ...
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- 2(sin^6theta+cos^6theta)-3(sin^4theta+cos^4theta) is equal to (a)0 (...
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- If acostheta+bsintheta=4 and asintheta-bcostheta=3 , then a^2+b^2 = (a...
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- If acottheta+b"c o s e c"theta=p and bcottheta+a"c o s e c"theta=q , t...
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- The value of sin^2 29o+sin^2 61o is (a) 1 (b) 0 (c) 2sin^2 29o (d) ...
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- If x=rsinthetacosvarphi , y=rsinthetasinvarphi and z=rcostheta , then ...
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- If sintheta+sin^2theta=1 , then cos^2theta+cos^4theta= (a)-1 (b) 1 (c...
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- If acostheta+bsintheta=m and asintheta-bcostheta=n , then a^2+b^2= (a...
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- If cosA+cos^2A=1 , then sin^2A+sin^4A= (a)-1 (b) 0 (c) 1 (d) None of ...
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- If x=asecthetacosvarphi , y=bsecthetasinvarphi and z=ctantheta , then ...
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- If acostheta-bsintheta=c , then asintheta+bcostheta= (a)+-sqrt(a^2+b^...
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- 9sec^2A-9tan^2A is equal to (a) 1 (b) 9 (c) 8 (d) 0
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