E x is an exponential function with the constant e as the base, denoted as y 2 e x, with the domain of R and the range of (o, ten ∞).

Whether e x and e (-ⅹ) are equal depends on the situation: when ⅹ is 0, ∫ e ≈ 2.78 ∴ e ⅹ > e (-ⅹ); When x=0, e x = e 0 =1= e (-x) = e (-0) =1,that is, e x and e (-x) are equal; When x

A method for jud nonsingular even functions

1. Look at the image

Odd function is symmetrical about the origin.

Even functions are symmetric about y axis.

That is, odd and even are functions that are symmetric about the origin and symmetric about the Y axis, and only have constant functions, which are 0.

Odd or even functions are functions that are neither symmetric about the origin nor symmetric about the Y axis.

2. See if certain conditions can be met.

Odd function satisfies f(-x)=-f(x) for x in any domain.

Even function satisfies f(-x)=f(x) for x in any domain.

That is, even numbers and odd numbers, which satisfy f(-x)=f(x) and f(-x)=-f(x). For X in any field, it is just a function with a constant of 0.

Non-odd and non-even, for X-no, f(-x)=f(x) and f(-x)=-f(x) are not valid in any domain.