Devinwright450 Devinwright450

11-07-2017
Mathematics

contestada

Is the following sum rational or irrational? (\sqrt(8))/(3)+\sqrt(16)

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matthewcooke23 matthewcooke23

11-07-2017

root 8 = 2 root 2
root 16 = 4
so 2 root 2 / 7 = (2/7) root 2
hence irrational

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11-07-2017

√8

√(4*2)

2√2

Since √2 is irrational, the sum of √8/(3)+√16 is irrational...

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