K kirkpk New member Joined Aug 1, 2009 Messages 1 Aug 1, 2009 #1 hey guys could anyone help me out with this prob. how do you figure out how cos^-1 (0) without a calculator. thanks alot
hey guys could anyone help me out with this prob. how do you figure out how cos^-1 (0) without a calculator. thanks alot
pka Elite Member Joined Jan 29, 2005 Messages 11,978 Aug 1, 2009 #2 What is the solution to \(\displaystyle \cos(x)=0,~0\le x \le \pi ?\). That solution answers your question.
What is the solution to \(\displaystyle \cos(x)=0,~0\le x \le \pi ?\). That solution answers your question.
