mn giúp mik nhanh với nha
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Khách
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NT
1
Những câu hỏi liên quan
28 tháng 10 2021
bữa sau bạn nhớ giải thích nữa nha chớ mình không biết tại sao ra đáp án đó đâu
10 tháng 11 2021
TL:
Hai đường thẳng song song không bao giờ cắt nhau
-HT-
!!!!!1
16 tháng 10 2020
1. I have a new car
2. Do you have a book?
3. I have an apple
4. We have made a lot of mistakes
5. We have made a lot of mistakes
6. I only have to think of a sentence.
7. I only have to take one suitcase on the train.
8. I only have to feed fish to the penguins.
9. I have two apples
10. You have beautiful eyelashes
16 tháng 10 2020
10 ví dụ have là:
do the boys have a football match?
do the girls have a big dinner?
does the girl have short hair?
Does he have yellow hair
do you have nice eyes?
Does she have a round face?
do you have long black hair?
Does the dog have a long tail?
Do they have a glasses?
D
7
4 tháng 12 2021
\(\left\{{}\begin{matrix}\widehat{OAB}=\widehat{ODC}\left(AB\text{//}CD\right)\\\widehat{OBA}=\widehat{OCD}\left(AB\text{//}CD\right)\\AB=CD\end{matrix}\right.\Rightarrow\Delta OAB=\Delta OCD\left(g.c.g\right)\\ \Rightarrow OA=OD;OB=OC\)
9D
1
21 tháng 10 2021
\(a,=\dfrac{\sqrt{2}\left(1+\sqrt{2}\right)}{1+\sqrt{2}}=\sqrt{2}\\ b,=\dfrac{\sqrt{5}\left(\sqrt{3}-1\right)}{\sqrt{3}-1}=\sqrt{5}\\ c,=\dfrac{\sqrt{3}\left(1-\sqrt{2}\right)}{2\left(\sqrt{2}-1\right)}=-\dfrac{\sqrt{3}}{2}\\ d,=\dfrac{\sqrt{5}\left(1-\sqrt{2}\right)}{\sqrt{3}\left(1-\sqrt{2}\right)}=\dfrac{\sqrt{5}}{\sqrt{3}}=\dfrac{\sqrt{15}}{3}\\ e,=\dfrac{\sqrt{7}\left(\sqrt{7}+1\right)}{\sqrt{7}+1}=\sqrt{7}\\ f,=\dfrac{\sqrt{5}\left(\sqrt{5}+1\right)}{\sqrt{5}+1}=\sqrt{5}\\ g,=\dfrac{\sqrt{2}\left(\sqrt{5}-1\right)}{\sqrt{5}-1}=\sqrt{2}\\ h,=\dfrac{\sqrt{5}\left(\sqrt{3}-1\right)}{\sqrt{3}-1}=\sqrt{5}\)
B
Ex2
2 It is a library
3 It is a railway station
4 It is a gym
5 It is a square
6 It is an art gallery
Ex3
1 colder
2 more dangerous
3 more important
4 narrower
5 faster
Ex4
1 than he used to be
2 than it was when I bought it
3 she was a child
4 than I was before
5 than they were ten years ago