Find all solutions to the equation.cos x = - 
A. x = 
+ 2n?, x = 
+ 2n?, for integers n
B. x = 
+ 2n?, x = 
+ 2n?, for integers n
C. x = 
+ 2n?, x = 
+ 2n?, for integers n
D. x = 
+ 2n?, x = 
+ 2n?, for integers n
Answer: A
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A. 
B. 1
C. 
D. 