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A function is matched below against an i...

A function is matched below against an interval where it is supposed to be increasing Which of the following parts is incorrectly matched ?
`{:("Interval","Function"),((a)[2,oo),2x^(3)-3x^(2)-12x+6),((b)(-oo,oo),x^(3)-3x^(2)+3x+3),((c)(-oo,-4],x^(3)+6x^(2)+6),((d)(-oo,(1)/(3)],3x^(2)-2x+1):}`

Text Solution

Verified by Experts

The correct Answer is:
d
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