why it is 90-ø? I dont have the basic. what i have to study to understand the basic of this question?
(the problem was- The angle of elevation of the top of a tower from the point P and Q at distance of m² and n² respectively from the base of the tower and in the same straight line with it are complementary. The height of the tower is
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In the question it said the angles on the ground are Complementary which means
∅ + (some angle) = 90°
(some angle) = 90° - ∅
You are studying trig it means its so below your level
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