# Finding a general solution to an exact differential equation.

• Feb 15th 2009, 02:20 PM
$dy/dx = 5^xln5+1/(x^2+1)$
Have you learned how to differentiate functions of the form $a^x$ yet? Try differentiating $a^x=e^{x\ln a}$ and see what you get.
The derivative of $\arctan x$ is also $\frac{1}{1+x^2}$.