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co ai chi minh lam bai nay vs
[TEX]\frac{{sin}^{n+1}x}{n+1} \leq \int_{0}^{1}sin^n{x}dx \leq \frac{1}{n+1}[/TEX]
[TEX]\frac{{sin}^{n+1}x}{n+1} \leq \int_{0}^{1}sin^n{x}dx \leq \frac{1}{n+1}[/TEX]