The quadratic power of y=x, that is, y = X, is a quadratic function. Generally speaking, we call a function in the form of y=ax+bx+c(a, b and c are constants) a quadratic function, in which a is called a quadratic term coefficient, b is a linear term coefficient and c is a constant term.

X is the independent variable and y is the dependent variable. The maximum number of independent variables to the right of the equal sign is 2. The square of x is equal to 2. X equals the root number 2, or the negative root number 2.

Infinite power of x:

When X> 1, the infinite power of x equals infinity; When X= 1, the infinite power of x is equal to1; When 1

The negative infinite power limit of e is equal to "0" and the positive infinite power of e is equal to "+∞". "E" is also a natural constant, which is a law of mathematics. It is about 2.7 1828, that is, the formula is lim (1+ 1/x) x, x →∞ or lim (1+z), z→0, which is an infinite non.