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