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MATH SOLVE
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For which to pairs of function is (f•g) (x) =x
4 months ago
Q:
For which to pairs of function is (f•g) (x) =x
Accepted Solution
A:
(fog)(x) = f(g(x))
if f(x) = 2/x and g(x) = 2/x
f(g(x)) = [2 /(2/x)]
f(g(x)) = [2 * x/2 ]
f(g(x)) = x .............matching the function
answer is
B. f(x) = 2/x and g(x) = 2/x