Which sets of numbers are closed under subtraction?
2 answers:
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<h2>Answer</h2>
The answer to this question is 0.9
<h2>Explanation</h2>We know that
sequre of 9 is equal to 81 as
Then sequre of 0.9 will be
So,
b =
b =
Exponent and square root cancel out each other
So, the answer is 0.9.