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Earn +20 ptsQ: Is 2 5 an irrational number?
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Why is phi an irrational number?
phi = [1+sqrt(5)]/2 sqrt(5) is irrational and so phi is irrational.
What is an irrational number between 5 and 7?
4*sqrt(2) Rational multiples of irrational numbers are irrational. sqrt(2) is about 1.414, and 5/4 = 1.25 < 1.414... < 1.75 = 7/4 so 4*sqrt(2) is between 5 and 7, and is irrational.
Is the square of an irrational number rational?
Sometimes. eg the irrational number √2 squared is 2 which is rational (2 = 2/1) eg the irrational number √(√2) squared is √2 which is irrational.
Is 5 squared a irrational number?
5 squared is 5*5 is 25. 25 is not an irrational number.
Is radical 5 arational number?
√ 5 is an irrational number. Any square root of a prime number is irrational.
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