If cos x = and x is a fourth-quadrant angle, evaluate cos 2x .
A. 0
B. 1
C. -1...
Mathematics, 21.05.2021 18:40 spookymod4845
If cos x = 
and x is a fourth-quadrant angle, evaluate cos 2x .
A. 0
B. 1
C. -1
Answers: 3
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