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A projectile can have the same range 'R' for two angles of projection . If `'T_(1)'` and `'T_(2)'` to be times of flights in the two cases, then the product of the two times of flights is directly proportional to .

A

R

B

`(1)/(R)`

C

`(1)/(R^(2))`

D

`R^(2)`

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