Kaylavaughn8235 Kaylavaughn8235 06-06-2023 Mathematics contestada MATH 126 - INTEGRAL CALCULUS (MIDYEAR) ACTIVITY 9 : DEFINITE INTEGRAL I. Evaluate the following. 1. ∫ 1 6 12x 3 −9x 2 +2dx 2. ∫ 1 4 t 8 −12 t 3 dt 3. ∫ 0 π sec(z)tan(z)−1dz