Question: 7. [8 marks] Evaluate the following integrals: 3 (a) xe dx using the substitution u = x33x (b X 2 + 4 dx

7. [8 marks] Evaluate the following integrals: 3 (a) xe dxusing the substitution u = x33x (b X 2 + 4 dx

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7. [8 marks] Evaluate the following integrals: 3 (a) xe dx using the substitution u = x33x (b X 2 + 4 dx

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