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votronghuy0609
2 năm trước
bài 1 : tính a) ( 4/9 + 1/3 )^2 b) ( 1/2 - 3/5)^3 c) ( -10/5 )^5 . (-6/5)^4 d) (3/4)^3 : 93/4)^2 : (-2/3)^3 bài 2 tìm n a) (1/3)^n = 1/81 b) -512/343 = (-8/7)^n c) (-3/4)^n = 81/256
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