Question

What would be the value of n for n2

–1 divisible by 8. 5. Is 5.131131113… a rational number or

irrational number?​

Answer 1

Answer:

Rational numbers:

A number that can be expressed as p/q , where p,q are integers and q≠0, is called a rational number.

Irrational numbers:

A number that cannot be expressed in the form p/q , where p,q are integers and q≠0, is called irrational number. These numbers neither terminates nor repeat the particular number in the process of division is said to be a non terminating non repeating decimal expansion.

SOLUTION:

Here, 5.131131113… has non terminating non repeating decimal expansion.So it is an irrational number.

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