求反函数 g(x)= 1/x-1

解答

求反函数

g (x) = \frac{1}{x} - 1

\frac{1}{x + 1}

求解步骤

y = \frac{1}{x} - 1

用

y

替代

x

x = \frac{1}{y} - 1

求解

y, x = \frac{1}{y} - 1

\frac{1}{x + 1}

a sy m pt o t es f (x) = \frac{x ^{2} - 1}{x ^{2} - 4}

am pl i t u d e cos (2 t)

d o main f (x) = \frac{1}{2 x - 3}

r an g e 4 x - x^{2}

mi d p o in t (- 3, - 2), (2, 3)