lx rồi nha em

lx rồi nha em

Câu 1: Cho chia hết cho 9. giá trị là gì?

Câu 2: Có bao nhiêu phần tử của tập A chia hết cho 9?

Câu 3: A là một tập hợp các bội số của 12 ít hơn 12. Làm thế nào nhiều yếu tố không tập A có?

Câu 4: Tìm dư khi chia cho 3. Câu 5: Cho rằng 511 là tổng của hai số nguyên tố và,. giá trị là gì?

Câu 6: Cho rằng. Tìm giá trị của.

Câu 7: Cho rằng. không số A có bao nhiêu ước?

Câu 8: Tìm số tự nhiên vì thế sản phẩm và 5 là số nguyên tố.

Câu 9: Cho rằng. không số A có bao nhiêu ước?

Câu 10: Cho rằng. Một số có bao nhiêu ước?

Câu 1: Given that  is divisible by 9. What is the value of ? 
Câu 2: How many elements of the set A are divisible by 9?
Câu 3:A is a set of multiples of 12 less than 12. How many elements does the set A have?
Câu 4:Find the remainder when  is divided by 3.
Câu 5:Given that 511 is the sum of two prime numbers  and , . What is the value of ?
Câu 6:Given that . Find the value of .
Câu 7:Given that . How many divisors does the number A have?
Câu 8:Find the natural number  so that the product of  and 5 is a prime number.
Câu 9:
Given that . How many divisors does the number A have?
Câu 10:
Given that . How many divisors the number A have?

Câu 1: Given that  is divisible by 9. What is the value of ? 
Câu 2: How many elements of the set A are divisible by 9?
Câu 3:A is a set of multiples of 12 less than 12. How many elements does the set A have?
Câu 4:Find the remainder when  is divided by 3.
Câu 5:Given that 511 is the sum of two prime numbers  and , . What is the value of ?
Câu 6:Given that . Find the value of .
Câu 7:Given that . How many divisors does the number A have?
Câu 8:Find the natural number  so that the product of  and 5 is a prime number.
Câu 9:
Given that . How many divisors does the number A have?
Câu 10:
Given that . How many divisors the number A have?

!!!!!!!!!!!

a+b+c=5 nha 

bằng 5, hok tốt

1. I find collecting glass bottles interesting.​​HOBBY
→ My ____________________________________________________________.
2. What hobby do you like best, Elena?​​FAVOURITE
→ What is your favourite hobby?
3. My sister thinks that arranging flowers is relaxing.​FINDS
→ My______________sister finds arranging flowers relaxing__
4. Linh finds playing board games boring.​​LIKE
→ Linh doesn't like playing board games
5.Why don’t we go swimming?  ​​​ABOUT
→ What about going swimming?
6. There is a big library in Lan’s school.​​HAS
→ Lan’s school has a big library

I. Using the words given and other words , complete the second sentences so that it has similar meaning to the first . Do not change the words given .

I find collecting glass bottles interesting ( HOBBY)

………My hobby is collecting glass bottles  ……………………………………………………………………………………….

What hobby do you like best , Elena? ( FAVORITE)

……What is your favorite hobby………………………………………………………………………………………….

3.Linh finds playing board games boring ( LIKE)

……Linh likes playing board games  ……………………………………………………………………………………….

4.My sister enjoys arranging flowers ( INTERESTED)

……My sister is interested in arranging flowers …………………………………………………………………………………………….

5.1.This is the first time I've ever painted a mural over graffiti.

 I have never painted a mural over graffiti before .................................................................................................................................

6 .Mr. Binh started recycling rubbish two years ago.

Mr. Binh has ......................recycled rubbish for two years ago. ............................................................................................................

7 .David failed the exam because of his laziness.

Because David ..................was lazy, he failed the exam....................................................................................................

8 .We have donated books and clothes for ten years.

We began ....................donating books and clothes ten years ago .............................................................................................................

khó nhìn quá  bạn ơi:(((

đen quá

ứng vào số câu

\(x^2-1=\left(x+1\right)\left(x-1\right)\)

\(f\left(x\right)=x^4+ax^3+bf\left(x\right)=x^4+ax^3+b\)

Theo định lí Bezout, ta có :

\(f\left(1\right)=1+ax^3+b=0=>a+b=-1\)

\(f\left(-1\right)=1-a+b=0=>-a+b=-1\)

Giải hệ phương trình, ta có:

a+b=-1

-a+b=-1

=> a=0;b=-1

=>a+b=-1