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Combine the two sentences by using a relative clause. Some of them need a comma. (5pts) 01. We believe that my friend doesn’t do the test well. He didn’t come to class yesterday. . My friend _________________________________________________________________ ___________________________________________________________________________ 02. They believe that the man sells lottery. He became a millionaire. . The...
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Combine the two sentences by using a relative clause. Some of them need a comma. (5pts) 01. We believe that my friend doesn’t do the test well. He didn’t come to class yesterday. . My friend _________________________________________________________________ ___________________________________________________________________________ 02. They believe that the man sells lottery. He became a millionaire. . The man________________________________________________________________ ___________________________________________________________________________ 03. He swam across the English Channel. It is an arm of the Atlantic Ocean that separates Southern England from northern France. .He _______________________________________________________________________ ____________________________________________________________________________ 04. Your sister is talking with a man. Do you know him? .Do _______ ______________________________________________________________ ___________________________________________________________________________? 05. Tom’s car was stolen. He has gone to the police station. .Tom_______________________________________________________________________
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Combine the two sentences by using a relative clause. Some of them need a comma. (5pts) 01. We believe that my friend doesn’t do the test well. He didn’t come to class yesterday. My friend _________________________________________________________________ ___________________________________________________________________________ 02. They believe that the man sells lottery. He became a millionaire. The...
Đọc tiếp
Combine the two sentences by using a relative clause. Some of them need a comma. (5pts) 01. We believe that my friend doesn’t do the test well. He didn’t come to class yesterday. My friend _________________________________________________________________ ___________________________________________________________________________ 02. They believe that the man sells lottery. He became a millionaire. The man________________________________________________________________ ___________________________________________________________________________ 03. He swam across the English Channel. It is an arm of the Atlantic Ocean that separates Southern England from northern France. He _______________________________________________________________________ ____________________________________________________________________________ 04. Your sister is talking with a man. Do you know him? Do _______ ______________________________________________________________ ___________________________________________________________________________? 05. Tom’s car was stolen. He has gone to the police station. Tom_______________________________________________________________________
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18 tháng 12 2021

Answer:

\(\sqrt{1-x^2}=4x^3-3x\left(ĐK:-1\le x\le1\right)\)

\(\Leftrightarrow\sqrt{1-x^2}=4x\left(x^2-1\right)\)

\(\Leftrightarrow\sqrt{1-x^2}+\left(1-x^2\right).4x=0\)

\(\Leftrightarrow\sqrt{1-x^2}=0\)

\(\Leftrightarrow1-x^2=0\)

Trường hợp 1: \(x=1\) (Loại)

Trường hợp 2: \(x=-1\) (Loại)

Trường hợp 3: \(x=0\) (Thoả mãn)

18 tháng 12 2021

rất nhỏ so với chiều dài quỹ đạo

6 tháng 1 2022
Sài đấy🤓🤓🤓
17 tháng 12 2021

B .2 NHA