√84 is irrational.
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The square roots of 84 are irrational.
No. The square root of 84 is an irrational number
No because it is 2 times the square root of 21 which is an irrational numberThe square root of 84 is not a rational number
No. The sq root of 84 is 9.16555515139. 81 is a perfect square, where the sq root is 9.
Any number that you can completely write down using digits is a rational number. Through hard work and perseverance, you succeeded in completely writing down "84", so it's a rational number. It's the ratio of 84 to 1 .