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If a,b,c are in A.P.and f(x)=|(x+a,x^2+1...

If a,b,c are in A.P.and f(x)=`|(x+a,x^2+1,1),(x+b, 2x^2-1,1),(x+c,3x^2-2 , 1)|`, then f'(x) is :

A

0

B

1

C

a+bc

D

`(abc)/(a+b+c)`

Text Solution

Verified by Experts

The correct Answer is:
A
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