HOC24
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Question 33. This is the most romantic story I have ever read.
Question 34. The boy wishes he had his teacher’s address.
Question 35. Liz asked us if we would spend our vacation in Ha Long the following year.
1. I wish she would not make so much noise.
2. What about using energy-saving bulbs instead of 100-watt light bulbs?
3. Last summer, Liz went to Nha Trang with her parents.
5. Britney Spears is the most famous singer this year, isn’t she?
Vì tam giác ABC vuông tại A nên:
AB2+AC2=BC2
Hay 32+42=BC2
=>BC=\(\sqrt{3^2+4^2}=5cm\)
a) \(sinB=\dfrac{AC}{BC}=\dfrac{4}{5}\)
\(cosC=\dfrac{AC}{BC}=\dfrac{4}{5}\)
\(tanB=\dfrac{AC}{AB}=\dfrac{4}{3}\)
b) cosB+sinC+2tanC= \(\dfrac{3}{5}+\dfrac{3}{5}+2.\dfrac{3}{4}=\dfrac{27}{10}\)
activist
generous
priority
humor
preparation
cultural
different – activities
nominated
choice
celebrations