If cos(x + 40)o = 0.0872, what is the value of x?
-
A.
85o -
B.
75o -
C.
65o -
D.
45o
Correct Answer: Option D
Explanation
cos(x + 40)o = 0.0872
x + 40 = cos-10.0872
x + 40o = 84.99o
x = 84.99o – 40o
x = 44.99
x = 45o
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