Question Detail

MTH 102 MTH 102 Past Questions Objective Question

Question

Integrate ∫(e³x+8x)dx
Options
A e³x+8x²
B 3e³x+4x²
C e³x+8x²+8
D (1/3)e³x+4x²
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

Integrate each term separately:
  • For ∫e³x dx: The integral of e&sup(ax) is (1/a)e&sup(ax). So, ∫e³x dx = (1/3)e³x.
  • For ∫8x dx: Use the power rule for integration. ∫8x dx = 8 * (x²/2) = 4x².
Combining these results, the integral is (1/3)e³x + 4x² + C. Option D matches this form.

Hint

Remember the integration rule for exponential functions: ∫e&sup(ax) dx = (1/a)e&sup(ax) + C, and the power rule for x&supn;.

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