Put the verbs in the correct form
1.Nam(buy)........a new dress 5 days ago
2.He(not eat)...........fish last night
3.If he (wash).........my car,I will give him 10 dollars
4.You(see).........a good movie yet?
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14 tháng 6 2020
\(C=\frac{2}{1.4}+\frac{2}{4.7}+\frac{2}{7.10}+...+\frac{2}{31.34}\)
\(C=\frac{2}{3}.\left(\frac{3}{1.4}+\frac{3}{4.7}+\frac{3}{7.10}+...+\frac{3}{31.34}\right)\)
\(C=\frac{2}{3}.\left(\frac{1}{1}-\frac{1}{4}+\frac{1}{4}-\frac{1}{7}+\frac{1}{7}-\frac{1}{10}+...+\frac{1}{31}-\frac{1}{34}\right)\)
\(C=\frac{2}{3}.\left(\frac{1}{1}-\frac{1}{34}\right)\)
\(C=\frac{2}{3}.\frac{33}{34}\)
\(C=\frac{11}{17}\)
15 tháng 6 2020
\(C=\frac{2}{1.4}+\frac{2}{4.7}+\frac{2}{7.10}+...+\frac{2}{31.34}\)
\(=\frac{2}{3}\left(\frac{1}{1.4}+\frac{1}{4.7}+\frac{1}{7.10}+...+\frac{1}{31.34}\right)\)
\(=\frac{2}{3}\left(1-\frac{1}{4}+\frac{1}{4}-\frac{1}{7}+\frac{1}{7}-\frac{1}{10}+...+\frac{1}{31}-\frac{1}{34}\right)\)
\(=\frac{2}{3}\left(1-\frac{1}{34}\right)=\frac{2}{3}.\frac{33}{34}=\frac{11}{17}\)
14 tháng 6 2020
(1)outdoor
(2)swimming
(3)snowman
(4)Swede
(5) programmes
14 tháng 6 2020
(1) outdoor (2) swimming (3)Swetzerland (4)snowman (5)programmes
Chúc bạn học tốt
16 tháng 7 2020
- Peter was ill, so he stayed at home yesterday.
- They take part in doing a lot of outdoor activities in summer.
- Minh is interested in teaching robots.
- I cartoon best on TV.
- Ba is very good at playing football.
bought
didn't eat
Put the verbs in the correct form
1.Nam(buy)...bought.....a new dress 5 days ago
2.He(not eat)..didn't eat.........fish last night
3.If he (wash)...washes......my car,I will give him 10 dollars
4.You(see)....saw.....a good movie yet?