Integration - Area Enclosed by the Curve and the X-Axis

Integration - Area Enclosed by the Curve and the X-Axis

TGM Original Questions

Find the area between each curve at the \(x\)-axis between the values of \(x\) shown:

  1. \(y = 16 - x^2\), \(0 \leq x \leq 4\)
  2. \(y = \sqrt{x}\), \(4 \leq x \leq 16\)
  3. \(y = e^{2x}\), \(\ln 2 \leq x \leq \ln 4\)
  4. \(y = \frac{1}{x^2} + 4\), \(2 \leq x \leq 6\)

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Answer:(a) \(\dfrac{128}{3}\text{ units}^2\); (b) \(\dfrac{112}{3}\text{ units}^2\); (c) \(6\text{ units}^2\); (d) \(\dfrac{49}{3}\text{ units}^2\)

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