यदि \( f(x)=\sin x+\cos ^{2} x \), तो सिद्ध कीजिए कि \( f(x)=f(\pi-x) \)

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यदि \( f(x)=\sin x+\cos ^{2} x \), तो सिद्ध कीजिए कि \( f(x)=f(\pi-x) \)
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