The angle of elevation of a cloud from a point h meters above the surface of a lake is "A" and the angle of depression of its reflection in the lake is "B". The height of the cloud is (1) h sin(A+B)/ sin(B-A) (2) h sin(B-A)/ sin(A+B) (3) h sin(A+B)/ sin(A-B) (4) h sin(A-B)/ sin(A+B)
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