<p>hey guys. i don't know if it's possible to answer these two questions on the computer but if you can, that would be great.</p>
<p>Does anybody know how to graph piecewise functions on the TI-89? </p>
<p>Also, how would you solve this problem?
If tan 4x=2cot4x and 0≤x≤180 degrees, then x=</p>
<p>(The answer is 13.7°, 76.3°, 103.7°, and 166.3°)</p>
<p>Thanks :)</p>