A) ? 4
B) ? 3
C) ? 2
D) ? 1
Correct Answer: C
Solution :
L.H.L. \[=\underset{x\to {{0}^{-}}}{\mathop{\lim }}\,\frac{\sqrt{1+kx}-\sqrt{1-kx}}{x}=k\] R.H.L. \[=\underset{x\to {{0}^{+}}}{\mathop{\lim }}\,(2{{x}^{2}}+3x-2)=-2\] Since it is continuous, L.H.L = R.H.L Þ \[k=-2\].You need to login to perform this action.
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