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Let f(x)=(x-1)^m(x-2)^n,"x"inR then each...

Let `f(x)=(x-1)^m(x-2)^n,"x"inR` then each critical point of f(x) is either local maximum or local minimum where

A

m = 2, n = 3

B

m = 2, n = 4

C

m = 3, n = 4

D

m =, n = 2

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B, D
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