I think the answer is (d) none of these
The expression inside the log should be strictly greater than 0.
Solving the expression inside we get (x+1)(x+b/2a)^2
For this to be greater than 0, we must have x>-1 and x not equal to -b/2a.
If it was union instead of integration in option (c) it would've been correct.
Locked
