<p>How would you find the inverse of the following function?</p>
<p>f(x) = cos x + 3x</p>
<p>Many thanks.</p>
<p>you cant ,there is no way</p>
<p>usually u just switch the x's and the y's and solve for y =, but the cosy makes it impossible.</p>
<p>Actually the inverse of cos(x) is cos-1(x), but only within a certain interval.</p>
<p>Hm yeah I don't think it's possible for this problem...</p>
<p>This problem is out of my book. I guess it wants me to use a grapher then? It does seem quite difficult.</p>