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# workings please?

calculus/precalculus

### 2 Answers

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- ?Lv 72 months ago
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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- PuzzlingLv 72 months ago
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.

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