[GMAT math practice question]
\(f(x) = \frac{x - 1}{x}\) and \(g(x) = \frac{x}{x - 1}\). We have \(f(g(a)) = a\). What is the value of \(a\)?
A. \(-2\)
B. \(-1\)
C. \(1\)
D. \(2\)
E. \(3\)![]()
\(f(x) = \frac{x - 1}{x}\) and \(g(x) = \frac{x}{x - 1}\). We have \(f(g(a)) = a\). What is the value of \(a\)?
A. \(-2\)
B. \(-1\)
C. \(1\)
D. \(2\)
E. \(3\)