cos x = - 1/2
х = ± (π - arccos 1/2) + 2πn
х = ± (π - π/3) + 2πn
х = ± 2π/3 + 2πn, n ∈ Z
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
cos x = - 1/2
х = ± (π - arccos 1/2) + 2πn
х = ± (π - π/3) + 2πn
х = ± 2π/3 + 2πn, n ∈ Z