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A vertical tower stands on a horizontal plane and is surmounted by a vertical flag-staff is height 6 m. At a point on the plane, the angle of elevation of the bottom and top of the flag-staff are `30^@` and `45^@` respectively. Find the height of the tower. `(take sqrt 3 = 1.73)`

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AGRAWAL PUBLICATION-INTRODUCTION TO TRIGNOMETRY AND ITS APPLICATIONS-EXAMPLE
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