SOLUTION: Solve 5 sec 2x + 7 = 0 for 0° ≤ x ≤ 360°
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Question 1063418: Solve 5 sec 2x + 7 = 0 for 0° ≤ x ≤ 360°
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
5 sec 2x + 7 = 0
5sec(2x) = -7
sec(2x) = -7/5
cos(2x) = -5/7
2x =~ 135.6 degs, 224.42 degs, 495.6 degs, 584.42 degs
x =~ 67.8, 112.2, 147.8, 292.2 degs
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