Show that 112+8\displaystyle \frac{1}{\frac{1}{\sqrt{2}} + \sqrt{8}}21+81 can be written as 25\displaystyle \frac{\sqrt{2}}{5}52, giving your answer in its simplest exact form.
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Markscheme
Surds Questions
217 exam-style questions on Eduqas GCSE Maths Surds. Each one has a worked solution and a mark scheme showing where the marks go.