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Language, notation and formulas

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6.1.2 Look at another solution

Now look at the sample solution below: consider both mathematical accuracy and style.

Sample Solution A to Example 16

Maximise

Click on ‘Reveal answer’ to see the tutor's marking.

Answer

Tutor's comments on Sample Solution A

Maximise

Previous A billions problem

Next 6.2 Another ‘billions’ solution

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