For the function

MATHEMATICS · Single correct · A Level · Mathematics · Exponentials and logarithms · Exponentials and logarithms

Problem

For the function p(x)=log⁡2(x2−9x+20)p(x)=\log_{2}(x^{2}-9x+20), the domain is (a) x>0x>0 (b) 4<x<54<x<5 (c) x<4 or x>5x<4 \text{ or } x>5 (d) x≤4 or x≥5x\le 4 \text{ or } x\ge 5

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