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The number of solution(s) of the equa...

The number of solution(s) of the equation `cos2theta=(sqrt(2)+1)(costheta-1/(sqrt(2)))` , in the interval `(-pi/4,(3pi)/4),` is `4` (b) 1 (c) 2 (d) 3

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ALLEN-TRIGONOMETRIC EQUATION-All Questions
  1. Set of values of 'alpha' in [0,\ 2pi] for which m=(log)(("x"+1/"x"))(2...

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  2. (a+2)sinalpha+(2a-1)cosalpha=(2a+1)iftanalpha"i s" 3/4 (b) 4/3 (c) ...

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  3. The number of solution(s) of the equation cos2theta=(sqrt(2)+1)(cos...

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  4. The value(s) of theta , which satisfy 3-2\ costheta-4sintheta-cos2thet...

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  5. Given that A ,\ B are positive acute angles and sqrt(3)\ sin2A=sin2B...

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  6. The value(s) of theta, which satisfy the equation : 2cos^3 3thetath...

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  7. The solution(s) of the equation sin7x+cos2x=-2 is/are x=(2kpi)/7+(3...

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  8. n|sinx|= m |cos| in [0, 2pi] where n > m and are positive integers

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  9. 2^1|cosx|+|cosx|^(2 dotx)=4\ \ in\ (-pi,pi)

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  10. Statement - I : For any real value of theta!=(2n+1)pior\ (2n++1)pi/...

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  11. Statement - I : The equation sqrt(3)cosx-sinx=2 has exactly one ...

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  12. Statement - I : General solution of (tan4x-tan2x)/(1+tan4xtan2x)=1\...

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  13. Statement - I :The equation sin(cos x) has no real solution. Becaus...

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  14. If sinA=s in Ba n dcosA=cosB , then find the value of A in terms of Bd...

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  15. Solve the equation: 1 + 2 cosecx = -(sec^2 (x/2))/2

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  16. Solve: sin3alpha=4sinalphasin(x+alpha)sin(x-alpha),w h e r ealpha!=npi...

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  17. Solve the inequality : tan^2x-(sqrt(3)+1)\ t a n x+sqrt(3)<0

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  18. Find the smallest positive value of x and y satisfying x-y=pi/4 and co...

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  19. For what value of k the equation sinx+cos(k+x)+cos(k-x)=2 has real sol...

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  20. Solve that following equations : "tantheta"+"tan"(theta+pi/3)+"tan"(t...

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