GCSE Maths Specification

OCR J560

Section 3.03: Exact calculations

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#3.03a

Use fractions in exact calculations without a calculator.

Use multiples of \(π\) in exact calculations without a calculator.

Use surds in exact calculations without a calculator.

#3.03b

Simplify expressions with surds, including rationalising denominators.

e.g. \(\sqrt{12} = 2\sqrt{3}\)

\(\dfrac{1}{\sqrt{3}} = \dfrac{\sqrt{3}}{3}\)

\(\dfrac{1}{\sqrt{3}+1} = \dfrac{\sqrt{3}-1}{2}\)