SOLUTION: What is the domain of the function {{{y =sqrt(1-2cosx)}}} for {{{xe[0,2pi]}}}I understand that is where the function is non negative but im having a bit of trouble with it. Any hel

Algebra ->  Trigonometry-basics -> SOLUTION: What is the domain of the function {{{y =sqrt(1-2cosx)}}} for {{{xe[0,2pi]}}}I understand that is where the function is non negative but im having a bit of trouble with it. Any hel      Log On


   

Question 791080: What is the domain of the function y+=sqrt%281-2cosx%29 for xe%5B0%2C2pi%5DI understand that is where the function is non negative but im having a bit of trouble with it. Any help would be appreciated
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
for x an element of (0, 2*pi), in trig pi is defined as 180 degrees
we are given the function y = square root (1 - 2*cos(x))
the domain of this function is valid from 60 degrees to 300 degrees or
(1/3)*pi < or = x < or = (5/3)*pi