(down) 0 (up)

My problem is cosx +1=0. find all solutions of the equation
⚑ Flag

by Cindy162 at October 21, 2010

Answers

(up) 0 (down)

cosx + 1 = 0 cosx = -1 x = 180 degrees To find all solutions, add 180 to 2kpi, whre k is any integer. x = 180 + 2kpi

⚑ Flag

12044

mathguy October 27, 2010