ep in your computation, making sure
    to show what rules you used.
  </div>

  <p>The following problem will help you review some of your
  trigonometry, inverse functions, as well as implicit
  differentiation.</p>

  <div class="problem">
    <div class="marginpar bmw">
      See sections 3.7-3.9 for more examples involving inverse
      trig functions and implicit differentiation.</div>
      Use implicit differentiation to explain why the
    derivative of $y=\arcsin x$ is $\ds y'=\frac{1}{\sqrt{1-x^2