Mathematics, 24.11.2019 23:31 CoolxBreeze

determine whether each number or expression is rational or irrational. [also explain why/how they're rational/irrational]

negative square root of 1
3 and the square root of 2
square root of 15
-5 5/6
pi by 2nd power
2 and the square root of 9

i already know a couple of these are irrational, but i need the explanation part

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