SOLUTION: f cos(x) = 0.56, then cos(-x) = ?
a. 0.56
b. -0.56
c. -0.44
d. 0.44
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Question 970272: f cos(x) = 0.56, then cos(-x) = ?
a. 0.56
b. -0.56
c. -0.44
d. 0.44
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
The cosine is an even function.
cos(x)=cos(-x)
0.56 is the right answer, A.
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