Fred graphed the following equations on his graphing calculator.
y = - cos: X
# 37 it Sg 321 17 2'r 2z 11-7 3:r
It 4 2 3.T 4 IT 5-70 4 3-T 2 7.T 4 2- In T4 5.rc 2/2 11-7 4 3 4
6. Describe, in complete sentences, how to use the above graphs to solve 3cos² x + cosx-1=0. -
wiganges that occur. including
Circle the feature(s) of the graph representing the solution(s) of:
(3cos² x-1) (cosx) =0, -TSXX
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6. Since we have the system of two equations, the solution lies in intersection points between their graphs. We can...