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Solving Trigonometric Inequalities

Question 4 • Precalculus

Which of the following inequalities have no solution over all real numbers? Check all that apply.cos(x) 2sec(x) 0.5tan(x) < –4

Answer
A
cos(x) < –2
B
3sin(x) > 2
C
sec(x) < 1
D
–1 < csc(x) < 1
E
cos(x) – 1 > 0.5
F
tan(x) < –4
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