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If costheta=(1)/(sqrt(2)),then find the ...

If `costheta=(1)/(sqrt(2))`,then find the value of `(tan^(2)theta+1)`.

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If costheta=(1)/(2) ,then find the value of 4cos^(3)theta-3costheta .

If tan theta =(1)/(sqrt(7)) , find the value of ("cosec"^(2)theta-sec^(2)theta)/("cosec"^(2)theta+sec^(2)theta) .

If sectheta=(3)/(2) ,then find value of (2costheta-tan^(2)theta)/(sin^(2)theta+1) .

If costheta=3/4 , then find the value of 9tan^2theta+9 .

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If costheta= (4)/(5) then find the value of (sinthetacostheta+tan^(2)theta) .

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NAGEEN PRAKASHAN ENGLISH-INTRODUCTION TO TRIGONOMETRY-Revision Exercise Very Short Answer Questions
  1. If sintheta=(3)/(4),then find the value of (2cos^(2)theta-3sin^(2)thet...

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  2. If tantheta=sqrt(3),then find the value of sintheta.

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  3. If costheta=(1)/(sqrt(2)),then find the value of (tan^(2)theta+1).

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  4. If sinA=(sqrt(3))/(2)andsinB=(1)/(2), then find the value if sin AcosB...

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  5. If costheta=(1)/(2),then find the value of 4cos^(3)theta-3costheta.

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  6. If sintheta=(7)/(25),then find the value of tan^(2)theta.

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  7. If "cosec"theta=sqrt(2),then find the value of (tan^(2)theta-1).

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  8. If sintheta=(1)/(2), then find the value of sin2theta

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  9. If costheta=(1)/(sqrt(2)),then find the value of cos2theta.

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  10. Find the value of (1-2sin^(2)30^(@)).

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  11. If sinA=cosA,then find the value of sin 2A.

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  12. If sectheta=(2)/(sqrt(3)),then find the value ofsec2theta.

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  13. If "cosec"theta=2,then find the value of "cosec" 3theta

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  14. Evaluate cos45^(@)cos30^(@)+sin45^(@)sin30^(@).

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  15. Evaluate (tan60^(@)-tan30^(@))/(1+tan60^(@)tan30^(@)).

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  16. Find the value of (1-sin^(2)A)(1+tan^(2)A).

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  17. Find the value of sin^(2)theta*sec^(2)theta.

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  18. Find the value of (1-cos^(2)A)*"cosec"^(2)A.

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  19. Find the value of ("cosec"^(2)A-1)*tan^(2)A.

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  20. Find the value of (sec^(2)A-1).

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