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A projectile is fired at an angle of 45^...

A projectile is fired at an angle of `45^(@)` with the horizontal. Elevation angle of the projection at its highest point as seen from the point of projection is

A

`60^(@)`

B

`tan^(-1)((1)/(2))`

C

`tan^(-1)((sqrt(3)/(2))`

D

`45^(@)`

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