(2+route of 2)^2 is it rational or not?
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Answer:
(2+√2)² = 2²+(√2)²+2×2×√2 = 4+2+4√2 = 6+4√2
which is an irrational number means not rational.
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Answer:
irrational...as 2+√2 is irrational (addition of a rational and an irrational number). So, its square will be irrational.
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