IB Calculus Problem 21

Let \(f(x) = e^x Sin 2x + 10\), with \(0 \leq x \leq 4\).

Part of the graph of \(f\) is shown below.

The figure is not to scale.

image essential to understanding the question

Shown are an x-intercept at point \(A\), a local maximum at point \(M\) with \(x = p\) and a local minimum at point \(N\) with \(x = q\).

  1. State the x-coordinate of \(A\).

  2. Find the value of

    1. \(p\)
    2. \(q\)
  3. Find \(\int_p^qf(x)dx\).

    Explain why this is not the area of the shaded region.

Published by Annie Bernatchez in «calculus». Key Words: IB, question