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The domain of f(x)=ln(a x^3+(a+b)x^2+(b+...

The domain of `f(x)=ln(a x^3+(a+b)x^2+(b+c)x+c),` where `a >0, b^2-4ac=0`, is

A

`R-{-(b)/(2a)}`

B

`R-{(-b/(2a))} cup {x |x ge -1}}`

C

`R-{-(b)/(2a)} cap (-1,oo)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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