33. \[ \left\{ \begin{array}{l} f(x) = \frac{\sqrt{2x+5} - \sqrt{x+7}}{x-2}, \quad \text{for } x \ne 2 \\ f(2) = k \end{array} \right. \]
and if \( f \) is continuous at \( x = 2 \), then \( k = \)
Answer is: option2
Solution:
.
