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If (1/(1+ "cosec" theta)-1/(1-"cosec" th...

If `(1/(1+ "cosec" theta)-1/(1-"cosec" theta))costheta =2,0^@ lt theta lt 90^@` then the value of `sin^2 theta + cot^2 theta + sec^2 theta` is :

A

1

B

`2 1/2`

C

`3 1/2`

D

2

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PINNACLE-TRIGONOMETRY-EXERCISE
  1. If 1/(1-sin theta)+1/(1+sin theta)= 4 Sec theta, 0^@< theta< 90^@, the...

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  2. The value of (4 tan^2 30+1/4 sin^2 90+ 1/8 cot^2 60+ sin^2 30. cos^2 4...

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  3. If (1/(1+ "cosec" theta)-1/(1-"cosec" theta))costheta =2,0^@ lt theta ...

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  4. If tanx = cot (60+6x), then what is the value of x ? यदि tanx = cot ...

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  5. For theta being an acute angle, if cosec theta= 1.25, then the value ...

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  6. For 0 prec theta prec 90, if 2 cos^2 theta=3 sin theta, then the value...

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  7. For 0 prec theta prec 90, if (sec theta( 1- sin theta)(sec theta+tan t...

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  8. If cos theta=(2p)/(p^2+1), then sin theta is equal to : यदि cos th...

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  9. If tanx = cot(65+9x), then what is the value of x? यदि tanx = cot(65...

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  10. If cos theta=(2p)/(p^2+1),(p ne 0) then tan theta is equal to : यदि ...

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  11. If 2 sin^2 theta+5 cos theta-4=0,0 lt theta lt 90 then the value of t...

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  12. If cos theta=(2p)/(p^2+1),(p ne +-1) then cosec theta is equal to : ...

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  13. If 2 sin^2 theta+5 cos theta-4=0,0 prec theta prec 90 then the value ...

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  14. If 12 cot^2 theta-31 cosec theta+32 =0 ,0 prec theta prec 90 then the...

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  15. If cosx = (-1)/2 and pi prec x prec (3 pi)/2, then the value of 4 tan^...

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  16. If 6(sec^2 59-cot^2 31)-2/3 sin 90-3 tan^2 56y tan^2 34= y/3, then the...

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  17. If 6(sec^2 59-cot^2 31)-2/3 sin 90-3 tan^2 56y tan^2 34= y/3, then the...

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  18. If sec theta=3x and tan theta=3/x, (x ne 0) then the value of 9(x^2-1/...

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  19. If cosx = (-1)/2 and pi prec x prec (3 pi)/2, then the value of 2 tan^...

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  20. If cosx = (-1)/2 and pi prec x prec (3 pi)/2, then the value of 2 tan^...

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