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CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
- If sin^(-1)a+sin^(-1)b+sin^(-1)c=pi, then the value of asqrt((1-a^2))+...
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- Find the sum of the series cos e ctheta+cos e c2theta+cos e c4theta+ t...
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- If tan6theta=p/q , find the value of 1/2(pcosec2theta-qsec2theta)
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- If 0ltalphaltpi/2 and sinalpha+cosalpha+tanalpha+cotalpha+secalpha+cos...
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- Prove that 1+cot theta <= cot (theta/2) for 0 < theta < pi. Find...
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- Let A,B,C, be three angles such that A=pi/4 and tanB tanC=pdot Find ...
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- Eliminate x from equations sin(a+x)=2b and sin(a-x)=2c.
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- If t a nbeta=(nsinalphacosalpha)/(1-nsin^2alpha) , show that tan(alph...
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- Prove that: (sinx)/(cos3x)+(sin3x)/(cos9x)+(sin9x)/(cos27 x)=(1/2)(ta...
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- If theta=3alphaand sintheta=a/(sqrt(a^2+b^2)), the value of the expre...
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- The value of tan6^0tan42^0tan66^0tan78^0 is (a)1 (b) 1/2 (c) 1/...
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- In triangle A B C , if angle is 90^0 and the area of triangle is 30 sq...
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- If sqrt(2)cos A=cos B+cos^3B ,a n dsqrt(2)sinA=sinB-sin^3Bt h e nsin(A...
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- In a right angled triangle the hypotenuse is 2sqrt(2) times the perpe...
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- A circular ring of radius 3cm hangs horizontally from a point 4 cm ve...
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- If tanbeta=2sinalphasingammacos e c(alpha+gamma), then cotalpha,cotbe...
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- tan9-tan27-tan63+tan81=4
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- Let x=sin1^0, then the value of the expression. 1/(cos0^0dotcos1^0)+...
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- If (tan3A)/(tanA)=k(k!=1) then which of the following is not true? (...
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- If x in (pi,(3pi)/2),then 4cos^2(pi/4-x/2)+sqrt(4sin^4x+sin^2 2x) is ...
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