MCQ
If $f(x)=\left\{\begin{array}{l}k x+1, x \leq \frac{\pi}{2} \\ \sin x, x>\frac{\pi}{2}\end{array} ;\right.$ is continuous at $x=\frac{\pi}{2}$ then, $k=$ ________ .
  • A
    $-\frac{2}{\pi}$
  • B
    $\frac{2}{\pi}$
  • C
    1
  • $0$

Answer

Correct option: D.
$0$
D

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