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3.1 Algebra and functions (A-level only)

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Question 9
51%

The functions f f\,f and g g\,g are defined by

f:x→e3x,x∈R f: x \rightarrow e^{3x}, \quad x \in \mathbb{R} f:x→e3x,x∈R g:x→4x+ln⁡x,x∈R,x>0 g: x \rightarrow 4x + \ln x, \quad x \in \mathbb{R}, x > 0 g:x→4x+lnx,x∈R,x>0
a.

Write down the range of fff.

[1]
b.

Find an expression for the composite function gfgfgf.

[2]
c.

Write down the range of gfgfgf.

[1]

3.1 Algebra and functions (A-level only) Questions

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