1. Find the number of non-perfect square numbers between 9 and 10 .
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Answer:Total natural number between square of 9 and square of 10 are starting from 82 and up to 99. As 81 and 100 both will not be included in these natural numbers. Therefore, There are total 18 natural numbers.
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2
Answer:
Number of non square
between 9 square and 10 square
= 2 × base of first no.
= 2 × 9
= 18
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