If the function \( f(x)=\left\{\begin{array}{r}\frac{k \cos x}{(\pi...

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If the function \( f(x)=\left\{\begin{array}{r}\frac{k \cos x}{(\pi-2 x)}, \text { when } x \neq \frac{\pi}{2} \\ 3, \text { when } x=\frac{\pi}{2}\end{array}\right. \)
P
W be continuous at \( x=\frac{\pi}{2} \), then the value of \( k \) is
(a) 3
(b) \( -3 \)
(c) \( -5 \)
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