Edexcel A-level Mathematics · 9MA0
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Calculator permitted. Show sufficient working in the spaces provided. Give inexact answers to 3 significant figures unless specified otherwise. The official exam provides a formulae and statistical tables booklet.
Original topic practice. This set is not a full official paper. Written work is self-reviewed against our worked solutions.
An open box has a square base of side and volume . Its base and four vertical sides have total area S. Find the least possible value of .
(5)
(Total for Question 1 is 5 marks)