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General solution for `|sinx|=cosx` is (a) `2npi+pi/4,\ n in I` (b) `2npi+-pi/4, n in I` (c) `npi+pi/4,\ n in I` (d) none of these

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ALLEN-TRIGONOMETRIC EQUATION-All Questions
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  3. General solution for |sinx|=cosx is (a) 2npi+pi/4,\ n in I (b) 2npi+-...

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  5. If cos^2x+cos^2 2x+cos^2 3x=1 then (a) x=(2n+1)pi/4,\ n in I (b) x=(2...

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  6. If 4\ cos^2theta+sqrt(3)=2(sqrt(3)+1)costheta, then theta is (a) 2npi+...

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

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

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

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

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  15. 2^1|cosx|+|cosx|^(2 dotx)=4\ \ in\ (-pi,pi)

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

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

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

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

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

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