Quang Phạm
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2024-12-24 18:49:36
2024-12-24 18:49:35
2024-12-24 18:49:35
2024-12-24 18:37:32
My name is...
2024-12-24 16:38:46
1/c ; 2/b ; 3/d ; 4/a ; 5/b ; 6/d ; 7/c ; 8/c ; 9/d
2024-12-24 16:25:40
\(\left|x\right|\) = 0 + \(\dfrac{1}{2}\)
\(\left|x\right|\)= \(\dfrac{1}{2}\)
x = \(\dfrac{1}{2}\) hay x = \(\dfrac{-1}{2}\)
2024-11-04 19:08:21
KLNT = Khối lượng của hạt nhân
=> KLNT = 37 amu
=> Nguyên tử x là Chlorine
2024-04-22 19:08:41
B
2024-04-22 19:07:56
c
2024-04-22 19:06:05
\(\dfrac{-13}{15}\) + \(\dfrac{5}{21}\) - \(\dfrac{1}{3}\) - \(\dfrac{2}{15}\) + \(\dfrac{2}{21}\)
=\(\dfrac{-13}{15}\) + \(\dfrac{2}{15}\) - \(\dfrac{5}{21}\) + \(\dfrac{2}{21}\) - \(\dfrac{1}{3}\)
= \(\dfrac{-15}{15}\) + \(\dfrac{7}{21}\) - \(\dfrac{1}{3}\)
= \(\dfrac{-3}{3}\) + \(\dfrac{1}{3}\) - \(\dfrac{1}{3}\)
= \(\dfrac{-2}{3}\) - \(\dfrac{1}{3}\)
= \(\dfrac{-3}{3}\)
= -1