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sin(ax b)dx cos(ax b) C , a z a ³ cos2 xdx tan x C ³ cos ax b ...Lê Phương Anh - Khuất Thị Thùy Linh T Ô L U Y +,75w&1*+, 0 T H P T Q U Ố C G I A N Ă M Môn 72k1 10 11 NHÀ XUẤT BẢN ĐẠI HỌC QUỐC GIA HÀ NỘI 12 LӠ,1Ï,ĈҪU Các em h͕c sinh thân m͇n! 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