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If minima of f (x) =(a)/(x)+bx at x = 2 ...

If minima of `f (x) =(a)/(x)+bx` at x = 2 is 2, then `(a, b)-=…`

A

`(2, (1)/(2))`

B

`(2, 2)`

C

`((1)/(2), 2)`

D

`((1)/(2), (1)/(2))`

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