The sum of two real numbers, x and y, is 9. a. Express y in terms of
Question:
The sum of two real numbers, x and y, is 9.
a. Express y in terms of x.
b.
i Given that P = x2y, write down an expression for P, in terms of x.
ii. Find the maximum value of P.
c.
i Given that Q = 3x2 + 2y2, write down an expression for Q, in terms of x.
ii. Find the minimum value of Q.
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a Since the sum of two real numbers x and y is 9 we have y 9 x b i Given that P x2y we can substitut...View the full answer
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Related Book For
Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook
ISBN: 9781108407144
1st Edition
Authors: Sue Pemberton, Julian Gilbey
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