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TÍCH PHAÂN VAØ ÖÙNG DUÏNG TOÙM TAÉT GIAÙO … cos2x dx sinx cosx π π ++ ∫ + 12) 1 x 0 1 dx ∫e1+. 13) (cos sin ) x x dx 4 0 ∫ 4 − 4 π 14) ∫ + 4 0 1 2sin2 cos2
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