June 2022 Paper 3 Q1

1 State the range of values of \(x\) for which the binomial expansion of

\[\sqrt{1 - \frac{x}{4}}\]

is valid.

Circle your answer. [1 mark]

• \(|x| \lt \dfrac{1}{4}\)
• \(|x| \lt 1\)
• \(|x| \lt 2\)
• \(|x| \lt 4\)