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Values of x between 0 and 2 pi which s...

Values of x between 0 and ` 2 pi ` which satisfy the equation ` sin x sqrt(8 cos^(2) x) =1 ` are in A.P. whose common difference is :

A

`(pi)/(4)`

B

`(pi)/(8)`

C

`(3pi)/(8)`

D

`(5pi)/(8)`

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The correct Answer is:
A
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OBJECTIVE RD SHARMA ENGLISH-TRIGONOMETRIC EQUATIONS AND INEQUATIONS-Chapter Test
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  3. Values of x between 0 and 2 pi which satisfy the equation sin x sqr...

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  4. If Cos20^0=k and Cosx=2k^2-1, then the possible values of x between 0^...

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  5. The general solution of the trigonometic equation "sin"x + "cos"x = 1...

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  6. The general solution of the equation sin^2thetasectheta+sqrt3 tantheta...

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  7. If X=x cos theta-y sin theta, Y=x sin theta+y cos theta and X^(2)+4XY...

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  8. The equation 3^(sin2x+2cos^(2)x)+3^(1-sin2x+2sin^(2)x) = 28 is satisfi...

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  9. The value of x , 0 le x le (pi)/2 which satisfy the equation 81^( si...

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  10. The smallest positive values of x and y which satisfy "tan" (x-y) =1, ...

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  11. The solution set of the inequality "cos"^(2) theta lt (1)/(2), is

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  12. The equation sin^4x+cos^4x+sin2x+alpha=0 is solvable for -5/2lt=alphal...

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  13. The equation "sin"^(4) x -2 "cos"^(2) x + a^(2) =0 is solvable if

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  14. The number of points in interval [ - (pi)/(2) , (pi)/(2)], where the ...

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  15. If 1/6 sinx, cosx, tan x are in G.P. then x=,

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  16. Find the minimum value of 2^("sin" x) + 2^("cos" x)

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  17. From the identity "sin" 3x = 3 "sin"x - 4"sin"^(3)x it follows that if...

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  18. Find the most general solution of 2^1|cosx|+cos^2x+|cosx|^(3+oo)=4

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  19. Let alpha, beta be any two positive values of x for which 2"cos"x, |"c...

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  20. If max {5 sin theta + 3 sin ( theta - alpha )}=7 , then the set of pos...

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