The function f(x)= (1+a x)- (1-b x) x is not defined at x = 0. The value which should be…
Mathematics · JEE Advanced · NTA Exams — Limit, Continuity and Differentiability
The function \(f(x)=\frac{\ln (1+a x)-\ln (1-b x)}{x}\) is not defined at x = 0. The value which should be assigned to f at x = 0 so that it is continuous at x = 0, is
- a – b
- a + b
- ln a – ln b
- none of these
Answer
(B) a + b
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