Question

What is the formula of integration of subtract ion of two function?

Answer 1

if you know that the integral of exp(x) is exp(x) from calculus with exponentials and that the integral of cos(x) is sin(x) from calculus with trigonometry then:

(e^{x}+\cos {x}\right)\,dx=\int e^{x}\,dx+\int \cos {x}\ \,dx=e^{x}+\sin {x}+C}