arccos(2y) Consider the integral - dy: 1 - 4y2 This can be transformed into a basic integral by letting U = COS (2y) and du = dy After perfroming the substitution, you obtain the integral duEvaluate the indefinite integral. _ A + B A B Hint: Rewrite as 2 fractions: = + . C C C You may need different u-substitutions for each fraction. Consider the indefinite integral dx: (8x + 2)3 This can be transformed into a basic integral by letting and du = dx Performing the substitution yields the integral du