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If 0 < theta < 2pi, then the intervals ...

If `0 < theta < 2pi`, then the intervals of values of ? for which `2sin^2theta-5sintheta+2>0`, is

A

`(0, (pi)/(6))uu((5pi)/(6),2pi)`

B

`((pi)/(8),(5pi)/(6))`

C

`(0,(pi)/(8))uu((pi)/(6),(5pi)/(6))`

D

`((41pi)/(48),pi)`

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A
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OBJECTIVE RD SHARMA-TRIGONOMETRIC RATIOS AND IDENTITIES-Exercise
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  3. If 0 < theta < 2pi, then the intervals of values of ? for which 2si...

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  4. If tantheta=x-1/(4x), then sectheta-tantheta is equal to

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  5. If sectheta=x+1/(4x), then s e ctheta+t a ntheta= x ,1/x (b) 2x ,1/(...

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  6. If piltthetalt 2pi, then sqrt((1+costheta)/(1-costheta)) is equal to

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  7. If theta lies in the second quadrant, then the value sqrt(((1-sinth...

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  8. sin^2 theta =(x+y)^2/(4xy) where x,yinR gives theta if and only if

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  9. sec theta=(a^(2)+b^(2))/(a^(2)-b^(2)), where a, binR, gives real balue...

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  10. If 0^@ltthetalt180^@ then sqrt(2+sqrt(2+sqrt(2+...+sqrt(2(1+costheta))...

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  12. If sec alpha and cosec alpha are the roots of the equation x^(2)-ax+b=...

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  13. The value of the expression 3(sinx-cosx)^(4)+4(sin^(6)x+cos^(6)x)+6(s...

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  19. If sin (picot theta)=cos (pi tantheta), then

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