B bubblefiz New member Joined Sep 19, 2006 Messages 5 Sep 19, 2006 #1 If f(x) = square root x and g(x) = |x|, find fg, f/g and their domains. I'm not sure even how to start this problem. If you could point me in the right direction, I would appreciate it.
If f(x) = square root x and g(x) = |x|, find fg, f/g and their domains. I'm not sure even how to start this problem. If you could point me in the right direction, I would appreciate it.
tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 11,325 Sep 19, 2006 #2 The place to start would be with the definition of the notation. What does 'fg' mean? f(x)*g(x)?
B bubblefiz New member Joined Sep 19, 2006 Messages 5 Sep 23, 2006 #3 fg= f(x)(g(x) = ( √x) (|x|) F/g = f(X)/g(x) = √x/ |x| for domains: All real numbers Df/g {x|x>0} g(x) can not = 0
fg= f(x)(g(x) = ( √x) (|x|) F/g = f(X)/g(x) = √x/ |x| for domains: All real numbers Df/g {x|x>0} g(x) can not = 0
