+118608 Do you mean
$$\\13\div (3tan\theta)=2\\\\
\frac{13}{3tan\theta}=2\\\\
\frac{13}{3}=2tan\theta\\\\
\frac{13}{6}=tan\theta\\\\$$
$$\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{tan}}^{\!\!\mathtt{-1}}{\left({\frac{{\mathtt{13}}}{{\mathtt{6}}}}\right)} = {\mathtt{65.224\: \!859\: \!431\: \!168^{\circ}}}$$
I entered that as atan(13/6)=
+118608 Do you mean
$$\\13\div (3tan\theta)=2\\\\
\frac{13}{3tan\theta}=2\\\\
\frac{13}{3}=2tan\theta\\\\
\frac{13}{6}=tan\theta\\\\$$
$$\underset{\,\,\,\,^{\textcolor[rgb]{0.66,0.66,0.66}{360^\circ}}}{{tan}}^{\!\!\mathtt{-1}}{\left({\frac{{\mathtt{13}}}{{\mathtt{6}}}}\right)} = {\mathtt{65.224\: \!859\: \!431\: \!168^{\circ}}}$$
I entered that as atan(13/6)=
