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Bạn xem lại câu giúp mình nhé là " remember " hay là " forget " ? Hay là bỏ " not "
~~~ HAND ~~~
1.D
2.C ( 3 cái kia s nặng còn sing là s nhẹ )
3.A
4.D ( 3 cái kia âm "s " )
5.C
~~~ HAND~~~
1. Lan is a student
2. She often gets up at 6 o'clock
3. She goes to school at 6 :45
4. She studies at school from 7:00 to 11:45
5. She plays the piano in the afternoon
6. She sometimes watches T V in the evening
~~~HAND ~~~
Go => went
Play => played
eat => ate
Learn => learnt ( hặc learned )
Leave => left
Shit => shat ( hoặc shitted )
Sleep ==> slept
1. too much
2. a little
3. with
4. How
5. aren't
6. too much
7. any
8. Don't
9. are cutting
10. a few
What .-.
1. Nam is the tallest student in his class
2. We have a thirty - minute class
3 . We will have a three month vâction
4. What is your date of birth
5. Nam is going to visit his grandparents tonight
Ghi sai đề rồi, phải thay tìm x,y biết bằng từ cho
\(A=\frac{xyz}{z^3}+\frac{xyz}{x^3}+\frac{xyz}{y^3}=xyz\left(\frac{1}{z^3}+\frac{1}{x^3}+\frac{1}{y^3}\right)\)
Ta có \(a+b+c=0=>a^3+b^3+c^3=3abc\)
Mặt khác \(\frac{1}{x}+\frac{1}{y}+\frac{1}{z}=0=>\frac{1}{x^3}+\frac{1}{y^3}+\frac{1}{z^3}=\frac{3}{xyz}\)
=> A= \(xyz.\frac{3}{xyz}\)
=3