解析 解:在前一百个数中,每三个数相加后重新排列,这会是:9,12,15,18.....105.将这些数字相加以后得到1 915.故答案为:1 915 每三个数相加后会出现一个等差数列.注意将每三个数相加,然后重新排列,得到等差数列后运用公式将新的数列相加.反馈 收藏
1.What a clever boy he is!How clever the boy is!2.What bad weather it is!How bad the weather is!3.What beautiful pictures they are!How beautiful the pictures are!4.What an interesting story it is!How interesting the story is!5.What exciting news it is!How exciting the news is!6....
What is the matrix X if A* X = B? (A and B are 2x2 matrices). What is the identity matrix squared? Can you square a non-square matrix? Which of the following matrices may NOT be a triangular matrix? A) Identity B) Inverse C) Diagonal D) Both B and C ...
A matrix is a rectangular array in which elements are arranged in rows and columns. The pseudo-inverse of a matrix is equal to its inverse if both the columns and the rows of the matrix are linearly independent.Answer and Explanation: ...
Thus, we would say that the dimension (or order) of the above matrix is 3 x 4, meaning that it has 3 rows and 4 columns.Numbers that appear in the rows and columns of a matrix are called elements of the matrix. In the above matrix, the element in the first column of the first ...
故答案为What a beautiful park! 3.【答案】What fine weather! 【核心短语/词汇】weather:天气 【解析】据题意可知,句子为What引导的祈使 句:What+形容词+不可数名词!形容词为fine, 不可数名词为weather。故答案为What fine weat her! 4.【答案】 What a tall boy! 【核心短语/词汇】boy:男孩 【解析】...
(1).【答案】flowers under the tree【解析】树下的花译为flowers under the tree,应填flowers under the tree.(2).【答案】in a big box【解析】在一个大盒子里译为in a big box,应填in a bigbox.(3).【答案】a small hill【解析】一座小山译为a small hill,应填a small hill.(4).【答案...
3 9 0 2 4 7 5 8 T = t 23 Elements of a Matrix Practice Q : w 12 = ? A : w 12 = 5 Q : 6 = ? A : 6 = w 24 Q : The element with value 16 is located in which row? A : Row 3 Q : How many columns (total) does this matrix contain? A : 4 ...
These are just some of the promising applications of AI in tackling global problems. But remember that AI is a tool, and its effectiveness depends on responsible development and implementation. Conclusion Artificial intelligence has the potential to be a transformative force, not just for businesses ...
Oh, no! My kitty is in big trouble. 哦,不好,小猫有麻烦了。 Dad puts my kitty outside. 爸爸把小猫扔到外面去了。 My kitty is mad. 小猫很生气。 She runs up a tree. 她爬上一棵树。 The tree is very tall. 那棵树非常高。