Re: functions

Posted by Dr. Strange on Apr 16, 2016; 1:32pm
URL: http://discussion-forum.276.s1.nabble.com/functions-tp7599851p7599888.html

However domain of sin(cos x) can't be R
X= pi,cos x =-1,sin cos x= sin -1= -0.84 which is not possible

In this case domain is cos x >=0
so x should be in 1st and 4th quadrant