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cosec theta=……….....

`cosec theta`=………..

A

`sqrt (1 + cot^2 theta)`

B

`sqrt (cot^2 theta - 1)`

C

`sqrt (1 + sin theta)`

D

`sqrt (cot theta - 1)`

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BEYOND PUBLICATION-APPLICATIONS OF TRIGNOMETRY-EXERCISE
  1. కింది వాటిలో thetaను లోపింప చేయంది. i) x =a (sec theta + tan theta), y...

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  2. tan 15^(@)=………….

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  3. cosec theta=………..

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  4. x=a sin theta, y=a cos theta " then "x^2+y^2=…………

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  5. Example of a Pythagorean Triplet is…………

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  6. sec^2 A=…………..

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  7. Show that (1)/(cos theta) - cos theta = tan theta. sin theta

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  8. sin theta=cos theta,theta in Q1 then theta-

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  9. 72^(@)=…………….

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  10. sin^2""105^(@)+cos^2""105^(@)=…………..

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  11. sin 45^(@)(cos 45^(@))=…………..

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  12. cos 40^(@)=0.76 then sin 50^(@)=………….

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  13. At a point 15m away form the base of a 15m high pole, the angle of ele...

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  14. When the length of the shadow of a person is equal to his height, then...

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  15. The angle of elevation of top of a tree is 30^(@). On moving 20m neare...

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  16. The ratio of length of a pole and its shadow is 1:sqrt(3). The angle ...

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  17. The upper part of a tree is broken by wind and makes an angle of 30^(@...

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  18. From a bridge 25m high, the angle of depression of a boat is 45^(@). F...

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  19. A tower makes an angle of elevation equal to the angle of depression f...

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  20. When the angle of elevation of a pole is 45^(@), the length of the pol...

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