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The shadow of a tower standing on a leve...

The shadow of a tower standing on a level plane is found to be 50 m longer when when sun's elevation is `30^(@)` than when it is `60^(@)`. Find the height of the tower.

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The correct Answer is:
`25sqrt(3)`
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EDUCART PUBLICATION-INTRODUCTION TO TRIGNOMETRY AND ITS APPLICATIONS -SHORT ANSWER (SA-II) TYPE QUESTIONS
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  3. Prove that : (sin^(4)theta- cos^(4) theta+ 1) "cosec"^(2)theta=2

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  19. If 2sin^(2)theta-cos^(2)theta=2, then find the value of theta.

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