1) y=\(\frac{1}{3}\)x³+x²+x-2

2) y= x+cosx

f(x) = \(\left\{{}\begin{matrix}\frac{\sqrt{1-x}-\sqrt{1+x}}{x-1}\\a+\frac{4-x}{x+2}\end{matrix}\right.\)tại X\(_o\)= 1
khi x<1

khi x \(\ge\) 1

Cho hai dây dẫn đặt tại A va B Với AB= 10cm Cho hai dòng điện chạy vào hai dây dẫn ngược chiều I₁=2A , I₂=4A . Xác định cảm ứng từ tổng hợp tại M trong trường hợp sau : MA=6cm , MB=4cm

lim \(\left(2n-3-\sqrt[3]{8n^3-6n^2+4}\right)\)

a) lim \(\left(2n-3-\sqrt[3]{8n^3-6n^2+4}\right)\)

b) lim \(n+1-\sqrt[3]{n^3-3n+1}\)

a) lim \(\frac{n\sqrt{n}-3n-2}{n^2-3n+2}\)

b) lim \(\frac{\sqrt{n}+1}{\sqrt{n}-2}\)

Chứng minh rằng với mọi n ∈ N✱ , ta có :

1/1.3+1/3.5+1/5.7+...+1/(2n-1)(2n+1)=n/2n+1

EXERCISE 4: Use a participle phrase to replace the relative clause in each sentence.

2. The taxi that took us to the airport broke down halfway

=>

3. There are a lot of people in the hall want to speak to you

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4. The woman who manages this bookstore used to be a publisher

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5. The man who took part in the robbery refused to give any information

=>

6. At the end of the road there is a path that leads to the river.

=>

7. All the people who work in your office are very pleasant.

=>

8: The travel agent gave me a brochure which contained all the needed information.

=>

9. During our holidays, we stayed ina nice room which overlooked the beach

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10. The men who walked alongside the president were his bodyguards.

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VI. Finish the second sentence so that it has the same meaning as the first one

1. he dislike being called " the liar " => He dislike people...

2. The police are following the suspects => The suspects ...

3. She always expects to be admired by everybody => She always expects everybody.....

4. Someone stole his car two days ago => He had ....