How do I use a graphing calculator to find the complex zeros of #x^4-1?#
1 Answer
You can't easily find complex zeros from a graphing calculator. See answer below.
Complex zeros:
Explanation:
Given:
Graph of the function:
graph{x^4 - 1 [-5, 5, -5, 5]}
You can't find complex zeros from a graphing calculator, but you can find the real zeros and then use synthetic division or long division to find the complex zeros:
The graph shows that there are zeros at
Using synthetic division put the values in the following order:
These values represent
2nd division of
These values represent
The complex zeros come from
Complex zeros: