In the following numbers, the irrational number is () (A) Root 36(B) Root (-4)2(C)0.2020020002(D)8/3

In the following numbers, the irrational number is () (A) Root 36(B) Root (-4)2(C)0.2020020002(D)8/3

(D)8/3.

What do you mean, rational number, irrational number?

Infinite non-circulating decimals and numbers with open roots are called irrational numbers
Integers and fractions are collectively called rational numbers
Mathematically, a rational number is the ratio of two integers, usually a/b, where b is not zero. A fraction is the usual expression for a rational number, and an integer is a fraction with a denominator of one, and of course a rational number.
In mathematics, rational number is the ratio of an integer a to a nonzero integer b, usually written as a/b, so it is also called fraction. Greek is called, which is originally meant as "proportional number "(rational number), but the Chinese translation is not appropriate and gradually becomes" reasonable number ". Real that are not rational numbers are called irrational numbers.
The set of all rational numbers is expressed as Q, and the decimal part of rational numbers is finite or cyclic.