giúp em vơi ạ
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1. Going in the rain is interesting.
2. Don't forget to learn by heart new words.
3. If he doesn't apologize me, I won't forgive him.
4. My grandmother is the most helpful (person) in my village.
5. What is the price of that hat?
6. Your book is different from my book.
Bài 3:
a: \(15x^2y-10xy^2=5xy\left(3x-2y\right)\)
b: \(x^2+2xy+y^2-9=\left(x+y-3\right)\left(x+y+3\right)\)
ĐKXĐ cho căn thức: \(x\ge-\dfrac{1}{2}\)
\(\lim\limits_{x\rightarrow+\infty}\dfrac{3x+1-\sqrt{2x+1}}{x^2-x}=\lim\limits_{x\rightarrow+\infty}\dfrac{\dfrac{3}{x}+\dfrac{1}{x^2}-\sqrt{\dfrac{2}{x^3}+\dfrac{1}{x^4}}}{1-\dfrac{1}{x}}=\dfrac{0}{1}=0\)
\(\Rightarrow y=0\) là TCN
\(\lim\limits_{x\rightarrow0}\dfrac{3x+1-\sqrt{2x+1}}{x^2-x}=\lim\limits_{x\rightarrow0}\dfrac{9x^2+4x}{x\left(x-1\right)\left(3x+1+\sqrt{2x+1}\right)}=\lim\limits_{x\rightarrow0}\dfrac{9x+4}{\left(x-1\right)\left(3x+1+\sqrt{2x+1}\right)}\)
\(=\dfrac{4}{-1\left(1+1\right)}\) hữu hạn
\(\Rightarrow x=0\) không phải tiệm cận
\(\lim\limits_{x\rightarrow1}\dfrac{3x+1-\sqrt{2x+1}}{x\left(x-1\right)}=\dfrac{4-\sqrt{3}}{0}=+\infty\Rightarrow x=1\) là TCĐ
Đồ thị hàm số có 2 tiệm cận
1 is washing
2 aren't watching
3 am having
4 is studying
5 are staying
6 are rising
7 are wautubg
8 are becoming
1. There are 4 people in Lan's family.
2. No, he isn't.
3. He works 5 days in a week.
4. Yes, she is.
5. Her brother is student.
1 There are four people in Lan's family.
2 No. He isn't.
3 He goes to work from Monday to Friday.
4. Yes. Her is.
5 He is a students.