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P is the top and and Q the foot of a tow...

P is the top and and Q the foot of a tower standing on a horizontal plane. A and B are two points on this planesuch that AB is 32m and angle QAB is a right angle. It is found that `cot(angle PAQ) =2/5 and cot(anglePBQ) = 3/5`then find the height of tower :

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