ta có \(\left(n^2-n+1\right)+\left(n^2+n+1\right)\\ =n^2-n+1+n^2+n+1\\ =2n^2+2\)
=>\(n\in\left\{n\in N\right\}112\le n\ge123\)
bài này mk k bt cách trình bày nhưng kết quả hình như là 15 đó bạn....
I add up all even number between 1 and 101. Then from my total I subtract all odd numbers between 0 and 100. What is the result?
Câu 9:
Three different positive integers and are such that .
What is the value of ?
Answer:
Câu 10:
Of the numbers 1,2,…,1000, how many numbers are divisible by neither 6 nor 9?
Answer:
The ratio of three possitive integers a,b and c is \(\frac{2}{5}:\frac{3}{4}:\frac{1}{6}\). Sum of squares of them is 24309. Find the sum of them?
*Tạm dịch: Tỉ lệ của 3 số nguyên dương a,b và c là \(\frac{2}{5}:\frac{3}{4}:\frac{1}{6}\). Tổng bình phương của chúng là 24309. Tìm tổng của chúng?
Mọi người nhớ ghi cách giải và đáp số ra nhé! Cảm ơn mọi người nhìu!!! :)
Divide $285 into three parts such that the second part is 1/4 of the third part and the ratio between the first and the second part is 4:3 The first part is
Divide $285 into three parts such that the second part is 1/4 of the third part and the ratio between the first and the second part is 4:3 The first part is
Mk có 1 câu toán tiếng anh bí mong mọi người giúp
The sum of two positive integer number m and n such that
\(2^m-2^n=256\)
In triangle mnp, an exterior angle at p is represented by ( 21x + 83 )º .if the two non - adjacent interior angles are represent by ( 9x + 35 )º and ( 10x + 50 )º ,find the value of x
Find the number of 3-digit positive numbers that have product of digits equals to 21.
Write the film review, using the following cues:
A Film Review:
-What kind the film is : a Disney cartoon film
-What the title of the film is: Atlantis: The lost empire
-Who the film is directed by: Gary Trousdale and Kirk Wise
-Who the main charater is: a scientist named Milo Thatch
-Who the characters are played by: Milo's voice is played by Michael J.Fox
-A short description of the plot the story: A rich man gives Milo a submarine and a team of people to help him find the Lost Empire of Atlantis. After some exciting adventures, Milo and his team find Atlantis. But Atlantis is in trouble. Milo has to save it
-Details of special effects/costumes/music,etc: The music in this film is amazing
-What we think is good or bad about the film: The film is sometimes scary, but it is very exciting
-A recommendation (advice about whether your classmates should watch this film and who will enjoy it): If you like action films and cartoons, you will love Atlantis: The Lost Empire
Answer:
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