If f(x) = {{:( 3x ^(2) + 12 x - 1",", -...

If ` f(x) = {{:( 3x ^(2) + 12 x - 1",", - 1 le x le 2), (37- x",", 2 lt x le 3):}, `then

A

f(x) is increasing on [-1,2]

B

f(x) is continuous on [-1,2]

C

f'(2) does not exist

D

f(x) has the minimum value at x=2

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The correct Answer is:

A, B, C, D

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