Browse Questions

# For what value of k, is the following continuous at x = 0? $f(x) = \left\{ \begin{array}{l l}\large\frac{\sqrt{1+x}-\sqrt{1-x}}{sin^{-1}x}, & \quad { x \neq 0}\\ k, & \quad { x = 0} \\ \end{array}. \right.$

Can you answer this question?