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Put the words in order to make correct sentences
1. If / she// exam / her / mother / passes / give / her / cake / will / the / a
=> If she passes the exam , her mother will give a cake .
2. Were / your brothers / Where / you / and / yesterday / ?
=> Where your brothers and you were yesterday ?
Put the words in order to make correct sentences
1. If / she// exam / her / mother / passes / give / her / cake / will / the / a
=> If she passes the exam , her mother witll give a cake
2. Were / your brothers / Where / you / and / yesterday / ?
=> Where were you and your brothers yesterday ?
Ta có: \(2121\times22-2222\times21=\left(21\times101\times22\right)-\left(22\times101\times21\right)=0\)
Do đó giá trị biểu thức đã cho là \(0\).
(1 + 3 + 5 +.......+ 2021 ) x ( 2121 x 22 -2222 x21)
(1 + 3 + 5 +.......+ 2021 ) x ( 21x101x22- 22x101x21
SAU 5 giờ nhé