SOLUTION: find all solutions to the equation cos x=-1.
possible answers:
x=pin
x=2pin
x=pi/2+pin
x=pi+2pin
Algebra.Com
Question 94681: find all solutions to the equation cos x=-1.
possible answers:
x=pin
x=2pin
x=pi/2+pin
x=pi+2pin
Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!
cos(x) = -1
For the cycle: [-pi,pi]
x = +- pi
period: 2(pi)
For any integer "n"
x = +- pi + 2(pi)n
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