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tan 15^(@)=…………....

`tan 15^(@)`=………….

A

`sqrt 3 /(sqrt 3 + 1)`

B

`(sqrt 3 - 1)/(sqrt 3 + 1)`

C

`(sqrt 3 - 1)/2`

D

none

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BEYOND PUBLICATION-APPLICATIONS OF TRIGNOMETRY-EXERCISE
  1. If cosec theta+cot theta =k" then "cos theta=………….

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  2. కింది వాటిలో thetaను లోపింప చేయంది. i) x =a (sec theta + tan theta), y...

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  3. tan 15^(@)=………….

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  4. cosec theta=………..

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

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

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  7. sec^2 A=…………..

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

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

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  10. 72^(@)=…………….

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

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  12. sin 45^(@)(cos 45^(@))=…………..

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

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

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

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

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

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

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

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

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