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(1)/(1+sin theta ) +(1)/(1-sin theta) = ...

`(1)/(1+sin theta ) +(1)/(1-sin theta) = ? `

A

`sec^2 theta`

B

`2 sec^2 theta`

C

`cosec^2 theta`

D

`2cosec^2 theta`

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The correct Answer is:
B
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UNIQUE PUBLICATION-TRIGONOMETRY-UNIQUE PRACTICE SESSION
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  2. If sin x = 3/4 , then cos x = ?

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  3. (1)/(1+sin theta ) +(1)/(1-sin theta) = ?

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  4. If cos theta = (1)/(sqrt2) " then " theta

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  5. If cos A = 4/5 than tan A = ?

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  6. If a pole height 6m casts a shadow 2sqrt(3)m long on the ground, then ...

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  7. if sin theta = 5/13 , find the value of cos theta

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  8. Write the maximum and minimum values of costheta .

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  9. If tanA=3/4 and A+B=90o , then what is the value of cotB ?

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  10. Write the value of cot^2theta-1/(sin^2theta) .

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  11. If sin theta = 4/5, what is the value of cot theta + cosec theta =?

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  12. The value of cot^2theta-9 cosec^2 theta is ……

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  13. What is the value of (1+tan^2 theta )(1-sin theta)( 1+sin theta ) = ?

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  14. If cosA=7/(25) , find the value of tanA+cotA .

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  15. If sin theta = (20)/(29) , then find the value of cos theta.

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  16. If sec theta=25/7 then find the value of tan theta.

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  17. Prove that sqrt( sec^(2) theta + "cosec"^(2) theta )= tan theta + c...

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  18. If sintheta+sin^2theta=1 , prove that cos^2theta+cos^4theta=1

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  19. Prove: (costheta)/(1-sintheta)=(1+sintheta)/(costheta)

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  20. सिद्ध कीजिए कि : sin^(2) theta + cos^(4) theta = cos^(2) theta + sin...

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