workings please?

Question

calculus/precalculus

Answer 1

f(x) = √x    and    g(x) = x⁴ - 9

(g∘f)(x) = (√x)⁴ - 9 = x² - 9

domain = (-∞,+∞)  ..........ANS

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          4x+1

f(x) = --------    and    g(x) = √x

             7

                 4√x + 1

(f∘g)(x) = ------------  .............ANS

                      7

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h(2) = 3, h(5) = 6, p(3) = 4 and p(2) = 5

(p∘h)(2) = p (h(2)) = p(3) = 4 ............ANS

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Answer 2

You've asked these separately already, haven't you? I know I answered the first one. And believe I've read at least one of the others too.

Source(s): https://answers.yahoo.com/question/index?qid=20210...