Mathematics Unit 2 SA1: Integration Worksheet 3: Approximationg Areas Use trapezoidal rule to approximate the integral for the indicated value of n. Give your answer in exact form, otherwise, correct to 2 decimal places. Compare and give comment with the exact integral value. 1. Sox3 dx, n = 4 [Ans: 4 -] MONASH University Foundation Year A pathway to Monash University 2 . 1 ( x + 1 ) 2 dx, n =4 [Ans: 0.17]