Find all solutions to cosx-1=0 I know that cosx=1 at O,360 degrees. It has to be in radians so pi and 2pi. I am having trouble writing it out in the form they are asking. For example 2pi/5 + kpi. I am trying to remember how to do this problem. In order to find all solutions do I have to add 2pi and subract 2pi from both pi and 2pi? Help please.

Question

Find all solutions to cosx-1=0  I know that cosx=1 at O,360 degrees. It has to be in radians so pi and 2pi. I am having trouble writing it out in the form they are asking. For example 2pi/5 + kpi.  I am trying to remember how to do this problem. In order to find all solutions do I have to add 2pi and subract 2pi from both pi and 2pi? Help please.

anonymous · Answer

u just keep adding 2pi, so the next angles will be 360+360 or in radians 2pi+2pi

anonymous · Answer

So would it be 0+2pik   or 2pi + 2pik???