Nguyễn Thị Lương
Giới thiệu về bản thân
có bạn nào biết bài mất kết nối ko
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2024-01-12 17:52:33
a,\(\dfrac{2}{3}\).\(\dfrac{5}{4}\)-\(\dfrac{3}{4}\).\(\dfrac{2}{3}\)=\(\dfrac{2}{3}\).(\(\dfrac{5}{4}\)-\(\dfrac{3}{4}\))=\(\dfrac{2}{3}\).\(\dfrac{1}{2}\)=\(\dfrac{1}{3}\)
b,2.\(\left(\dfrac{-3}{2}\right)\)2-\(\dfrac{7}{2}\)=\(\dfrac{9}{2}\)-\(\dfrac{7}{2}\)=\(\dfrac{2}{2}\)=1
c,\(-\dfrac{3}{4}\).\(5\dfrac{3}{13}\)-0,75.\(\dfrac{36}{13}\)=\(-\dfrac{3}{4}\).\(\dfrac{68}{13}\)-\(\dfrac{3}{4}\).\(\dfrac{36}{13}\)=\(\dfrac{3}{4}\).\(\dfrac{-68}{13}\)-\(\dfrac{36}{13}\)=\(\dfrac{3}{4}\).\(\dfrac{-104}{13}\)=\(\dfrac{3}{4}\).(-8)=-6
2023-02-04 15:09:27
D. lop