SOLUTION: Solve secx = -1/2
a) no solution
b) {120°, 240°}
c) {150°, 210°}
d) {210°, 330°}
Algebra.Com
Question 866888: Solve secx = -1/2
a) no solution
b) {120°, 240°}
c) {150°, 210°}
d) {210°, 330°}
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
sec x = -1/2 <--> cos x = -2
No solution since cos x can only be in [-1, 1]
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