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Khuyen Nguyen
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2023-09-25 18:48:47
2022-06-18 08:41:03
.
2022-06-18 08:38:40
.
2022-06-18 08:38:01
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2022-05-09 19:02:45
5
2022-05-09 19:02:25
25m
2022-05-09 19:02:21
a) \(\dfrac{6}{8}\)
b) \(\dfrac{3}{2}\);\(\dfrac{1}{2}\)
c) \(\dfrac{-1}{2}\); \(\dfrac{-1}{3}\)
2022-05-09 19:00:40
a) \(\dfrac{1}{4}\)
b) 1
c) \(\dfrac{-8}{13}\)
d) 1
2022-05-09 18:00:09
a) (1 - \(\dfrac{1}{2}\)) + \(\dfrac{1}{3}\)
= (\(\dfrac{2}{2}\) - \(\dfrac{1}{2}\)) + \(\dfrac{1}{3}\)
= \(\dfrac{1}{2}\) + \(\dfrac{1}{3}\)
= \(\dfrac{3}{6}\) + \(\dfrac{2}{6}\)
= \(\dfrac{5}{6}\)
b) (\(\dfrac{2}{5}\) + \(\dfrac{3}{5}\)) : \(\dfrac{9}{10}\)
= \(\dfrac{5}{5}\) : \(\dfrac{9}{10}\)
= 1 . \(\dfrac{10}{9}\)
= \(\dfrac{10}{9}\)
c)
2022-05-09 17:48:20
a) Các tia chung gốc A là : AB, Ay, AM, AC, Az, Ax
b) Các điểm thuộc tia Az mà không thuộc Ay là : điểm M và điểm C
c) Tia AM và tia MA không đối nhau vì tia AM và tia MA đều có điểm bắt đầu là điểm A, M và điểm kết thúc cũng là điểm A,M.