1. Given that the domain of F (x + 1) is [- 1,1], then the domain of F | x + 1 | is the process and method of? - (3,1) 2. Given the function f (x) = 1 / 2x ^ 2-x + 3 / 2, whether there is a real number m, so that the domain of definition and range of value of the function are [1, M] (M > 1)? If there is, request m m = - 3, 1 / 2x ^ 2 is the square of half X

1. Given that the domain of F (x + 1) is [- 1,1], then the domain of F | x + 1 | is the process and method of? - (3,1) 2. Given the function f (x) = 1 / 2x ^ 2-x + 3 / 2, whether there is a real number m, so that the domain of definition and range of value of the function are [1, M] (M > 1)? If there is, request m m = - 3, 1 / 2x ^ 2 is the square of half X

The front one should be X-1
If we regard X-1 as a whole, then when x takes [- 1,1), X-1 takes [- 2,0)
If x + 1 is regarded as a whole and its value range is [- 2,0), then the range of X is [- 3, - 1)
The definition field is equal to the value field, and the line y = x is taken
Two lines intersect, take the intersection point
simultaneous equation
y=1/2x^2-x+3/2
y=x
We get X1 = 1, X2 = 3, and 3 is the solution