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	Các bình luận về: Đề bài: Biết rằng \(\int\limits_{\frac{\pi }{6}}^{\frac{\pi }{2}} {\frac{{co{s^3}x + {\mathop{\rm sinx}\nolimits} }}{{{\mathop{\rm sinx}\nolimits} }}} dx = a.\pi  + b + c\ln 2\left( {a,b,c \in \mathbb{Q}} \right)\). Tính tổng S = a + b + c.	</title>
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