Maths - Compound Functions
Flashcards
What does $fg(x)$ mean?
\[f(g(x))\]
What does $f^2(x)$ mean?
\[f(f(x))\]
What does $\alpha \circ \beta (x)$ mean?
\[\alpha(\beta(x))\]
If the domain for $g(x) = x^2 - 3$ is
\[x \in \mathbb{R}, x \ge 0\]
What is the domain for $gf(x)$ where $f(x) = 5x - 2$?
\[x \ge \frac{2}{5}\]