1.

OP is a tower of height 20 m and AB is a pole of height 5 m. The angle of elevation of the top P of the tower from the top B of the pole is 45^(@). Both pole and tower stand on the same ground. The angle of elevation of the top P of the tower from the base A of the pole is

Answer»

`"cos"^(-1) (3)/(5)`
`"sin"^(-1) (3)/(5)`
`"tan"^(-1) (3)/(4)`
`"COT"^(-1) (3)/(4)`

ANSWER :A


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