Question 12 (5 points) Match each integration technique to the integral for which it is most appropriate. This means that it is the integration technique that lets you solve the integral in the most efficient way possible. Note: You must match exactly one technique to each of the integrals. 1 . x tan(x2) dx Partial fractions 2 . x cos(x)dx u-substitution 3. It's just a basic integral dx Vx2 - 9 Trigonometric substitution 4 . dx (x + 1) 2 (x - 2 ) Integration by parts 5. dx X