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MARVEL PUBLICATION-TRIGONOMETRIC FUNCTIONS OF COMPOUND ANGLES AND FACTORIZATION FORMULAE-MCQs
- If tantheta=(-1)/(sqrt5)andtheta lies in the fourth quadrant, then: co...
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- If sinx+sin^2x=1. then evaluate cos^8x+2cos^6x+cos^4x
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- The value of cos 1^@ cos 2^@ cos 3^@... cos 179^@ is
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- If tanA=1/2andtanB=1/3, then: A+B= (a) pi/4 (b) 0 (c) pi (d) pi/6
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- The sintheta+cosectheta=2, then: sin^2theta+cosec^2theta=
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- 8sin.x/8.cos.x/2.cos.x/4.cos.x/8=
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- If tantheta+sectheta=sqrt3, then: theta=
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- If sinA+sinB+sinC=3. Then: cosA+cosB+cosC= (a) 0 (b) 1 (c) 2 (d) 3
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- Let 0<x<pi/4, then (sec2x-tan2x) equals tan(x-pi/4) (b) tan(pi/4-x) ...
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- If, in a DeltaABC,tanA=1andtanB=2, then: tanC= (a) 1 (b) 2 (c) 3 (d) 4
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- If, in a DeltaABC,tanA=1andtanB=2, then: tanC=
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- The value of sin^2 75^0-sin^2 15^0 is 1//2 b. sqrt(3)//2 c. 1 d. 0
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- If DeltaABC is a right-angled at A, then: cos^2B+cos^2C=
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- sin^6A+cos^6A+3sin^2A.cos^2A=
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- If cos(A-B)=3/5and tan A tanB=2, then
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- If A, B, C, D be the angles of acyclic quadrilateral, show that : cosA...
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- If sin.alpha/2+cos.alpha/2=1.4, then: sinalpha=
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- If tanalpha+cotalpha=m then value of tan^4alpha+cot^4alpha is
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- If cos theta+cos phi=a and sin theta - sin phi=b, then: 2cos(theta + p...
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- If sinx+cosecx=2, then, for all n in N, the value of: sin^nx+cosec^nx=...
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