|cosx| = 1
Значит:
cosx= 1 -> x=2pi*k
cosx = -1 -> x=pi+2pi*N
|ctgx| = 1
ctgx = 1 -> x=pi/4 + 2pi*k
ctgx = -1 -> x=3pi/4 + 2pi*N
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
|cosx| = 1
Значит:
cosx= 1 -> x=2pi*k
cosx = -1 -> x=pi+2pi*N
|ctgx| = 1
ctgx = 1 -> x=pi/4 + 2pi*k
ctgx = -1 -> x=3pi/4 + 2pi*N