5. Using a computer or software to find an approximate value for the area under the curve given by y = 4 – x² on the interval [-2, 2] using the left-endpoint approximation with n = 50. Round your...

Extracted text: 5. Using a computer or software to find an approximate value for the area under the curve given by y = 4 – x² on the interval [-2, 2] using the left-endpoint approximation with n = 50. Round your answer to four decimal places. Do not just write down the decimal approximation. Express the sum using sigma notation.