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The set of all x in (-pi,pi) satisfying ...

The set of all x in `(-pi,pi)` satisfying `|4 sin x-1| lt sqrt(5)` is given by

A

`(-(9pi)/10, (7pi)/10)`

B

`(pi/10, (3pi)/10)`

C

`(pi/10, - (3pi)/10)`

D

none of these

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The correct Answer is:
A
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ML KHANNA-TRIGONOMETRICAL EQUATIONS -SELF ASSESSMENT TEST
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  7. If cos p theta+cos q theta=0, then prove that the different values of ...

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  10. If x = X "cos" theta-Y "sin" theta, y = X "sin" theta + Y "cos" theta ...

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  11. The general solution of the equation tan^2 x + 2 sqrt3 tan x = 1is giv...

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  12. Let P= {theta : sin theta - cos theta = sqrt2 cos theta} and Q =...

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  13. For 0 lt theta lt pi/2, the solutions of sigma(m-1)^(6)"cosec"(theta+(...

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  18. The general solution of sinx-cosx=sqrt(2), for any integer n is

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