There are six fundamental formulas on integration of trigonometric functions.
$\Large \int \normalsize \sin{x} dx = -\cos{x}+c$
$\Large \int \normalsize \cos{x} dx = \sin{x}+c$
$\Large \int \normalsize \sec^2{x} dx = \tan{x}+c$
$\Large \int \normalsize \csc^2{x} dx = -\cot{x}+c$
$\Large \int \normalsize \sec{x}\tan{x} dx = \sec{x}+c$
$\Large \int \normalsize \csc{x}\cot{x} dx = -\csc{x}+c$
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