A flexible chain of weight \( W \) hangs between two fixed points A and B which are at the same ...

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A flexible chain of weight \( W \) hangs between two fixed points A and B which are at the same horizontal level. The inclination of the chain with the horizontal at both the points of support is \( \theta \). What is the tension of the chain at the mid point?
\( P \)
(A) \( \frac{\mathrm{W}}{2} \cdot \operatorname{cosec} \theta \)
(B) \( \frac{\mathrm{W}}{2} \cdot \tan \theta \)
(C) \( \frac{W}{2} \cdot \cot \theta \)
(D) none
W.
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