problem is in image, plz help?
http://i.imgur.com/mvPgnsZ.png
Need help in algebra?
2016-03-02 3:54 pm
回答 (1)
2016-03-02 4:11 pm
(5π/6) + (π/6) = π ≠ n(2π)
(5π/6) - (π/6) = 2π/3 ≠ n(2π)
Hence, (5π/6) is NOT coterminal with π/6
(13π/6) - (π/6) = 2π
Hence, (13π/6) is coterminal with π/6
(-5π/6) + (π/6) = -2π/3 ≠ n(2π)
(-5π/6) - (π/6) = -π ≠ n(2π)
Hence, (5π/6) is NOT coterminal with π/6
(-11π/6) - (π/6) = -2π
Hence, (13π/6) is coterminal with π/6
Angles that are coterminal with (π/6) : (13π/6) and (-11π/6)
(5π/6) - (π/6) = 2π/3 ≠ n(2π)
Hence, (5π/6) is NOT coterminal with π/6
(13π/6) - (π/6) = 2π
Hence, (13π/6) is coterminal with π/6
(-5π/6) + (π/6) = -2π/3 ≠ n(2π)
(-5π/6) - (π/6) = -π ≠ n(2π)
Hence, (5π/6) is NOT coterminal with π/6
(-11π/6) - (π/6) = -2π
Hence, (13π/6) is coterminal with π/6
Angles that are coterminal with (π/6) : (13π/6) and (-11π/6)
收錄日期: 2021-04-18 14:33:21
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160302075405AA8wJIM