I forgot the rules to apply when multiplying w/ square roots.
f(x) = 1+x^2
g(x) = squareroot[x-1]
f o g = 1 + (sqroot[x-2]) --> do i square everything to get 1 + x - 2 --> x-1 ??
g(f(x)) = [sqroot(1+x^2)-1] then square it all to get 1+x^2 - 1 ---> x^2?
(f o g) (2) = same thing but multiply final to get 2(x-1) --> 2x-2 ??
sorry but im rusty on my math and have no books or review
f(x) = 1+x^2
g(x) = squareroot[x-1]
f o g = 1 + (sqroot[x-2]) --> do i square everything to get 1 + x - 2 --> x-1 ??
g(f(x)) = [sqroot(1+x^2)-1] then square it all to get 1+x^2 - 1 ---> x^2?
(f o g) (2) = same thing but multiply final to get 2(x-1) --> 2x-2 ??
sorry but im rusty on my math and have no books or review