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From the top of a cliff 25 m high the...

From the top of a cliff 25 m high the angle of elevation of a tower is found to be equal to the angle of depression of the foot of the tower. The height of the tower is (a) 25 m        (b) 50 m        (c) 75 m       (d) 100 m

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RD SHARMA-SOME APPLICATIONS OF TRIGONOMETRY-All Questions
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  2. In Fig. 12.58, what are the angles of depression from the observing...

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