SRMJEE 2016 Paper with key

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Question : 84 of 155

Marks: +1, -0

If f(x)={

log(1+2ax)−log(1−bx)

x

k

,

x≠0

x=0

is continuous at x=0, then the value of k is

b+a
b - 2a
2a - b
2a + b

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