求反函数 f(x)=(sqrt(7x-1))/2

解答

求反函数

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

\frac{4 x ^{2} + 1}{7}

求解步骤

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

用

y

替代

x

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

求解

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

\frac{4 x ^{2} + 1}{7}

in v erse y + 5 = lo g_{0.7} (3 x - 2)

in v erse \frac{d}{d} 5 x - 9 (1.2)

in v erse \frac{( x + 3 )}{( x + 13 )}

in v erse y = \frac{3}{4} \frac{2}{3} x - \frac{4}{9}

in v erse f (x) = 2^{(x)} + 5