5.7 Inverse Trigonometric Functions: Integration Integrals involving inverse trig functions – Let u be a differentiable function of x, and let a > 0. 1. 22 arcsin du u C au a ³ 2. 22 1 arctan du u C a u a a ³ 3. 22 1 sec du u arc C u u a aa ³ Why are there only three integrals and not six? Examples: Find the integral. 1. 142 dx x ³ 2. 2 ...