Posted by Madison on Tuesday, October 9, 2012 at 12:42am.
Find (fog)(2) and (gof)(2)
f(x)=Square root of 4x; g(x)=13x^2
Show work.

Math  Steve, Tuesday, October 9, 2012 at 4:45am
f(g) = sqrt(4g) = sqrt(4(13x^2)) = sqrt(3+3x^2)
f(g(2)) = sqrt(3+12) = sqrt(15)
or, g(2) = 112 = 11
f(11) = sqrt(4+11) = sqrt(15)
do g(f) the same way.