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The angles of a triangle are in A.P. and...

The angles of a triangle are in A.P. and one of them is `80^@`. Find all the angles in sexagesimal system.

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MODERN PUBLICATION-TRIGNOMETRY-EXERCISE
  1. The angles of a triangle are in A.P. and the greatest angle of the tri...

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  2. The angles of a triangle are in A.P. and the number of degrees in the ...

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  3. The angles of a triangle are in A.P. and one of them is 80^@. Find all...

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  4. The angles of a triangle are in A.P. and the greatest is 84^@. Find al...

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  5. The angles of a quadrilateral are in A.P. Find all the angles if the ...

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  6. The minute hand of a watch is 1.5 cm long. How many cm does its extrem...

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  7. A horse is tied to post by a rope. If the horse moves along circular p...

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  8. If a train is moving on the circular path of 1500 m radius at the rate...

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  9. At what distance does a man, whose height is 2 metres, subtend an angl...

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  10. Assuming that a person of normal sight can read print to such distance...

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  11. Assuming that the earth’s radius is 6400 km and that it subtends an an...

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  12. Prove the following identity : sin theta cot theta+ sin theta cosec ...

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  13. Prove that (cosec theta- sin theta) ( sec theta-cos theta) ( tan theta...

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  14. Prove the following identity : sin theta (1+tan theta)+ cos theta(1+...

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  15. Prove the following identity : (sin theta+ cos theta) (sec theta+ co...

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  16. (cosec theta -sin theta) (sec theta - cos theta) (tan theta + cot thet...

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  17. Prove the following identity : sin^2 A cos^2 B + cos^2 A sin^2 B + c...

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  18. Prove the following identity : (sin theta tan theta)/ (1-cos theta)=...

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  19. Prove the following identity : (1+cos theta)/(1-cos theta)= (tan^2 t...

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  20. Prove the following identity : (1-sin theta)/(1+sin theta)= (sec the...

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