1.

A man observes that the angle of elevation of the top of a tower from a point P on the ground is theta. He moves a certain distance towards the foot of the tower and finds that the angle of elevation of the top has doubled. He further moves a distance 3/4 of the previous and finds that the angle of elevation is three times that at P. The angle theta is given by

Answer»

`SIN THETA = SQRT(5//12)`
`COS theta = sqrt(5//12)`
`sin theta = 3//4`
`cos theta = 3//8`

ANSWER :A


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