View Policies Current Attempt in Progress Use a calculator or a computer to evaluate the definite integral. Enter the exact answer. (x2 + x) dx = 1 Save for Later Attempts: 0 of 1 used Submit Answer Current Attempt in Progress Use a calculator or computer to evaluate the integral. Round your answer to one decimal place. [ 2 dx Save for Later Attempts: 0 of 1 used Submit Answer Current Attempt in Progress Use a calculator or a computer to evaluate the definite integral. Round your answer to four decimal places. Save for Later Attempts: 0 of 1 used Submit Answer Current Attempt in Progress Use a calculator or computer to evaluate the integral. Round your answer to three decimal places. ( r + 1) z dr Save for Later Attempts: 0 of 1 used Submit