# inverse function

• June 4th 2011, 12:09 AM
footmath
inverse function
hello.
would you solve this problem?
inverse function: f(x)=x^3+x+sqrt{x}
• June 4th 2011, 12:24 AM
chisigma
Quote:

Originally Posted by footmath
hello.
would you solve this problem?
inverse function: f(x)=x^3+x+sqrt{x}

Set $\sqrt{x}=t$ and the solve in t the equation $t^{6}+ t^{2} + t -y =0$ ...

Kind regards

$\chi$ $\sigma$
• June 4th 2011, 12:44 AM
footmath
yes but how?
• June 4th 2011, 04:15 AM
mr fantastic
Quote:

Originally Posted by footmath
hello.
would you solve this problem?
inverse function: f(x)=x^3+x+sqrt{x}

Why are you trying to find the inverse of this function? Please post the whole question.