求反函数 f(x)=-1/7 sqrt(16-x^2)

解答

求反函数

f (x) = - \frac{1}{7} 16 - x^{2}

- 49 x^{2} + 16, - - 49 x^{2} + 16

求解步骤

y = - \frac{1}{7} 16 - x^{2}

用

y

替代

x

x = - \frac{1}{7} 16 - y^{2}

求解

y, x = - \frac{1}{7} 16 - y^{2}

- 49 x^{2} + 16, - - 49 x^{2} + 16

in v erse f (x) = (x^{3} - 5)^{\frac{1}{5}} + 2

in v erse f (x) = 2 ln (x + a)

in v erse y = 45 - 0.45 x

in v erse f (x) = \frac{t ^{2} + 3 t - 4}{t ^{2} - 6 t + 5}

in v erse f (x) = 3 x + 17