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	Các bình luận về: Cho hàm số \(f(x) = \left\{ {\begin{array}{*{20}{l}}{{x^2} + 2x}&#038;{{\rm{ khi }}x \ge \frac{3}{2}}\\{x &#8211; 2}&#038;{{\rm{ khi }}x &#060; \frac{3}{2}}\end{array}} \right.\). Khi đó \(I = \int\limits_0^{\frac{\pi }{2}} {\sin xf\left( {\cos x + 1} \right)} dx\)bằng	</title>
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