Precalc0105to0107-page21

Precalc0105to0107-page21 - (Section 1.6: Combining...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
(Section 1.6: Combining Functions) 1.6.9 Example 6 (Evaluating Composite Functions; Revisiting Example 5) Again, let fu () = 1 u and gx = x ± 1 . Evaluate f ± g 3 , f ± g 0 , and f ± g x + h , where x + h > 1 . § Solution In Example 5, we developed the formula: f ± g x = 1 x ± 1 on 1, ± . Evaluate f ± g 3 . Evaluate f ± g x + h . Observe: 3 ± ² . We assume: x + h > 1 . f ± g 3 = 1 3 ± 1 = 1 2 = 2 2 f ± g x + h = 1 x + h ± 1 = 1 x + h ± 1 = x + h ± 1 x + h ± 1 Evaluate f ± g 0 . Observe: 0 ± ² . f ± g 0 is undefined. We can also evaluate
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This document was uploaded on 12/29/2011.

Ask a homework question - tutors are online