# When exponents meet trigonometry...

Calculus Level 3

The integration of $$e^{3x}$$ cos x with respect to x can be expressed as $$\frac{p}{q}$$ $$e^{3x}$$ sin x + $$\frac{r}{s}$$ $$e^{3x}$$ cos x + c where c is the arbitrary constant. Assuming gcd (p, q) = 1 and gcd (r, s) = 1, what is p+q+r+s?

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