If \( f(x)=\left\{\begin{array}{cc}\frac{\sqrt{1+k x}-\sqrt{1-k x}}{x}, & \text { for }-1 \leq x... VIDEO
If \( f(x)=\left\{\begin{array}{cc}\frac{\sqrt{1+k x}-\sqrt{1-k x}}{x}, & \text { for }-1 \leq x0 \\ 2 x^{2}+3 x-2, & \text { for } 0 \leq x \leq 1\end{array}\right. \) is continuous at \( x=0 \), then \( k \) is equal tohttps://bit.ly/YTAI_PWAP https://www.pw.live
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