subjects
Giới thiệu về bản thân
G2.[Robot] - subjects nghĩa là môn học 🤪🤪
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2024-12-24 21:25:17
2024-12-24 21:22:30
2024-12-23 16:24:03
2024-12-23 16:23:31
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2024-12-23 15:50:16
2024-12-17 16:42:45
= 104 X 234000 = 24336000
2024-12-17 16:41:35
\(\widehat{A}+\widehat{B}+\widehat{C}=180^0\\ \widehat{B}+\widehat{C}=180^0-\widehat{A}\\ \widehat{B}+\widehat{C}=180^0-60^0=120^0\)
\(\text{MÀ }\widehat{B}=2\widehat{C}\)
\(\Leftrightarrow2\widehat{C}+\widehat{C}=120^0\\ 3\widehat{C}=120^0\\ \widehat{C}=40^0\\ \Rightarrow\widehat{B}=2\widehat{C}=2\cdot40=80^0\)
2024-12-17 16:37:25
\(a.\sqrt{54}:\sqrt{2}:\sqrt{3}\\ =\sqrt{54:2:3}=\sqrt{9}=3\\ b.\dfrac{\sqrt{3}}{\sqrt{75}}:\dfrac{\sqrt{52}}{\sqrt{117}}=\sqrt{\dfrac{1}{25}}:\sqrt{\dfrac{4}{9}}\\ =\dfrac{1}{5}:\dfrac{2}{3}=\dfrac{1}{5}\cdot\dfrac{3}{2}=\dfrac{3}{10}\)