4400 Higher November 2009 Paper 3 Q11
11 Make \(a\) the subject of \(P = \sqrt{ab}\)
(2)
| Scheme | Marks |
|---|---|
| \(P^2 = ab\) or \(P/\sqrt{b} = \sqrt{a}\) | M1 |
| \(P^2/b\) oe | A1 |
| (2) | |
| (2 marks) |
Notes
M1: accept \(P^2 = a \times b\) and \(P \times P = a \times b\)
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