Let f be continuous on [1,5] and differe...

Let f be continuous on [1,5] and differentiable in (1,5) .if f(1) =-3 and f' (x) ` ge 9 ` for all ` x in (1,5)` then : a)` f (5) , ge 33` b)` f (5) ge 36` c)` f (5) le 36` d)` f (5) ge 9`

A

` f (5) , ge 33`

B

` f (5) ge 36`

C

` f (5) le 36`

D

` f (5) ge 9`

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The correct Answer is:

A

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