Let f : [-3, 4] to R such that f ''(x) g...

Let `f : [-3, 4] to R` such that `f ''(x) gt 0` for all `x in [-3,4],` then which of the following are always true ?

A

f (x) has a relative minimum on `(-3, 4)`

B

f (x) has a minimum on `[-3,4]`

C

f (x) has a maximum on `[-3,4]`

D

if `f (3) =f (4),` then `f (x)` has a critical point on `[-3,4]`

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The correct Answer is:

B, C, D

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