求y=2x^2+3(x

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求y=2x^2+3(x求y=2x^2+3(x求y=2x^2+3(xy逆=－√[﹙y-3）／2]）（xy=根号下((x-3)/2)求反函数只须用y表示x再将x换成yy换成xy=2x+3/x-1xy-y=

求y=2x^2+3(x
求y=2x^2+3(x<-1)的反函数

求y=2x^2+3(x
y逆=－√[﹙y-3）／2] ）（x

y=根号下((x-3)/2) 求反函数只须用y表示x 再将x换成y y换成x

y=2x+3/x-1 xy-y=2x+3 xy-2x=y+3 x(y-2)=y+3 x=(y+3)/(y-2) 即反函数是：y=x+3/x-2 y=(2x+3)/(x-1) y(x

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