What is the second power of X divided by the second power of X?
When x equals 0, there is no solution
When x equals a real number other than 0, it is equal to 1
How much is the second power of divided by X-1?
(1 + 1 / x) divided by X / X to the second power - 1
=(x + 1) × [(x + 1) (x-1)] x
=(x-1) 1 / 2
Monotone decreasing interval of x-x of y = e
X power of y = E-X
The x-th power of Y '= E-1
Let y ′