SOLUTION: Find all solutions of the equation in the interval (0,2pi) using cos(degree)+1=0

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Question 875647: Find all solutions of the equation in the interval (0,2pi)
using cos(degree)+1=0
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
cos(theta) + 1 = 0

cos(theta) = -1

theta = arccos(-1)

theta = pi ... use a unit circle to find this