Theanglesofelevationofthetopof a TV tower from three points A, B and C – InterviewSolution

1.	Theanglesofelevationofthetopof a TV tower from three points A, B and C in a straight li(in the horizontal plane) through the foot of tower are a, 2a and 3α respectively. IfAB-a, the heigh,of tower is:(A) a tan α(B) a sin α(C) a sin 2α(D) a sin 3α
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