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Question

Find (0.4p0.5q)2  [3 MARKS]


Solution

Steps : 2 Marks each
Result : 1 Mark

(0.4p0.5q)2

=(0.4p0.5q)×(0.4p0.5q)

=(0.4p)×(0.4p)(0.4p×0.5q+0.4p×0.5q)+(0.5q)×(0.5q)

=0.16p20.40pq+0.25q2

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