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The poins of extremum of phi(x)=underse...

The poins of extremum of `phi(x)=underset(1)overset(x)inte^(-t^(2)//2) (1-t^(2))dt` are

A

x = 0

B

x = 1

C

x = 1/2

D

x = -1

Text Solution

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The correct Answer is:
B, D
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