Saved Bookmarks
| 1. |
\begin{array} { l } { \text { Ex. 16. If } f ( x ) = x ^ { 2 } - 1 \text { and } g ( x ) = \sqrt { x } , \text { find } } \\ { \text { (a) } ( \text { fog } ) ( x ) } \\ {\ text { (gof)} { x } }end{array} |
|
Answer» a) f(g) = f(√x) = (√x)² - 1 = x - 1 b)g(f) = g(x²-1) = √(x²-1) |
|