f(x)=
3x+4
2x−1
y=
y(3x+4)=2x−1
3xy+4y=2x−1
3xy−2x=−4y−1
x(3y−2)=−4y−1
x=
3x−2
−4y−1
f
−1
(x)=
−4x−1
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Verified answer
f(x)=
3x+4
2x−1
y=
3x+4
2x−1
y(3x+4)=2x−1
3xy+4y=2x−1
3xy−2x=−4y−1
x(3y−2)=−4y−1
x=
3x−2
−4y−1
f
−1
(x)=
3x+4
−4x−1