The answer to the first volume of sixth grade primary school mathematics "Learn to practice Excellence" is 46 pages and 47 pages. The questions you ask must also be on the topic so that everyone can help you. Who has a pile of reference books with him for future reference? Know what regional exam questions, how many pages are there in the book, how many pages are there in the so-and-so Olympic math question, and what regional prestigious school project software, etc. Think about how others can help you before giving the question. Besides racking your brains to help you think, do you still have to spend money on books to help you answer questions? The last photo or picture won't? Or the problem can't be clarified?

The sixth grade of primary school, the first volume of mathematics training, 57 pages, answer by yourself.

The sixth grade elementary school mathematics exercise book, volume one, page 27, urgently seeking an answer! Urgent! Urgent! The answer to 13 is 1. The following correspond, but the mapping from p to m is () A.P={ positive integer}, M={- 1, 1}, F: X→ (- 1) XB. P = {Y2=|x| Answer: D Analysis: Because any non-zero real number in P has two opposite numbers corresponding to it in M.2. In the following groups of functions, () a.f (x) = 1, g (x) = x0b.f (x) = x2, which one of g (x) represents the same function? Only two functions with the same domain and corresponding rules can be the same function. The domain of A.g(x) is x ≠ 0, that of f (x) is R.B.g(x) is x≠2, and that of f(x) is x ≠ 2. F( 1)=, f (x 2) = f (x) f (2), then f(5) is equal to () a.0b.1c. D.5 answer: c analysis: special case method: f(x)=x meets the meaning of the question. Therefore, f(5)=. Direct method: x =-1f (1) = f (-1) f (2) f (1) =-f (1) f (2) = .4. Let the quadratic function f(x)=ax2 bx c(a≠0), if f (x1) = f (x2) (x1≠ x2), then f(x 1 x2) is equal to g(x)= a. 0，f(2)& lt； F( 1), get a.