Find all real solutions to the equation cos(z) = 0 (Please show all of your steps so I can learn from how you did it, thanks!) Solution cos(z) = 0 z=arccos(0) Since the inverse of cosine is restricted to the domain of (0,pi), the solution is z=pi/2 If you are looking for ALL solutions, use z= (pi/2) +pi*k, where k is an integer. pi*k is the period..

1. Find all real solutions to the equation cos(z) = 0
(Please show all of your steps so I can learn from how you did it, thanks!)
Solution
cos(z) = 0 z=arccos(0) Since the inverse of cosine is restricted to the domain of
(0,pi), the solution is z=pi/2 If you are looking for ALL solutions, use z= (pi/2) +pi*k, where k is
an integer. pi*k is the period.