Calculus

1:

The minimum value of | x2 _ 5x + 21 | is

A.

-5

B.

0

C.

-1

D.

-2

 

Answer : B

Explanation :

Since value of a mod function cannot be less than zero, therefore
f(x) = | x2 - 5x + 21 | is zero.

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Option: A

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