Jane F.

asked • 04/11/19

Trigonometric Equations

Using inverse trigonometric functions, find a solution to the equation  cos(x)=.7 in the interval 0 to 4pi. Then, use a graph to find all other solutions to this equation in this interval. Enter your answers as a comma separated list.


I have the first two answers, .7954, and 5.4878. However, I still need to find two answers but I am not sure how to.


Thank you!!

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