Question

anyone cn please help me in these two questions ​

Answer 1

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Question 5.

No. Square roots of all positive integers are not irrational. Example 4, 9, 16, etc. are positive integers and their square roots are 2, 9 and 4 which are rational numbers.

Question 6.

All irrational numbers has non-terminating and non-recurring decimal expression.

So, √2, √3 and √5 will give such expressions.

This is one of the various possible answers. It might have different solution.