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CENGAGE-TRIGONOMETRIC FUNCTIONS-Solved Examples And Exercises
- In triangle A B C , if r1=2r2=3r2, then a : b is equal to 5/4 (b) 4/5...
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- If cosalpha=1/2(x+1/x)a n dcosbeta=1/2(y+1/y),(x y >0); x , y ,alpha,b...
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- In triangle A B C ,(sinA+sinB+sinC)/(sinA+sinB-sinC) is equal to
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- The radii r1, r2,r3 of the escribed circles of the triangle A B C are ...
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- Let alphaa n dbeta be any two positive values of x for which 2cosx ,|c...
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- If alpha+beta+gamma=2pi, then (a) tan(alpha/2)+tan(beta/2)+tan(gamma...
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- The total number of solution of |cotx|=cotx+1/(sinx),x in [0,3pi] , is...
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- The value of f(alpha)=sqrt(cos e c^2alpha-2cotalpha)+sqrt(cos e c^2alp...
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- If I is the incenter of a triangle ABC, then the ratio I A : I B : I C...
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- If asinx+bcos(x+theta)+bcos(x-theta)=d , then the minimum value of |c...
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- The number of solution the equation cos(theta).cos(pitheta)=1 has 0 ...
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- If x=secvarphi-tanvarphia n dy=cos e cvarphi+cotvarphi, then x=(y+1)/(...
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- Prove that 5costheta+3cos(theta+pi/3)+3 lies between -4a n d10.
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- The general solution of cosxcos6x=-1 is x=(2n+1)pi,n in Z x=2npi,n...
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- If f(x)=sin^6x+cos^6x , then range of f(x) is
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- Which of the following number(s) is/are rational? (a)sin15^0 (b) co...
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- The number of solutions of sum(r=1)^5cosrx=5 in the interval [0,2pi] i...
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- The minimum value of atan^2x+bcot^2x equals the maximum value of asin^...
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- Which of the following statements are always correct (where Q denotes ...
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- The greatest value of sin^4theta+cos^4thetai s 1/2 (b) 1 (c) 2 (d...
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