Chapter 6.3, Problem 48E

To determine

To graph: The sine and cosine function on the same set of axes for $0\le x\le 2\pi$ , using a graphing calculator. Use the graphs to find the values of x , if any, for which $\sin x\cos x\le 0$ is true.

Answer to Problem 48E

  $x=0,\frac{\pi }{2}\le x\le \pi ,\frac{3\pi }{2}\le x\le 2\pi$

Explanation of Solution

Given information: $\sin x\cos x\le 0$

Calculation:

  $x=0,\frac{\pi }{2}\le x\le \pi ,\frac{3\pi }{2}\le x\le 2\pi$