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Q: Is 2.121121 1 1 2 1 1 1 1 2 and irrational number?
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Related questions

Does an irrational number multiplied by an irrational number equal an irrational number?

The product of two irrational numbers may be rational or irrational. For example, sqrt(2) is irrational, and sqrt(2)*sqrt(2) = 2, a rational number. On the other hand, (2^(1/4)) * (2^(1/4)) = 2^(1/2) = sqrt(2), so here two irrational numbers multiply to give an irrational number.


Is the square of an irrational number rational?

Sometimes. eg the irrational number √2 squared is 2 which is rational (2 = 2/1) eg the irrational number √(√2) squared is √2 which is irrational.


Does an irrational number times an irrational number equal an irrational number?

Not always. For example sqrt(2) and 1/sqrt(2) are both irrational, but their product is the rational number 1.


If you divide 2 irrational numbers is the answer always an irrational number?

No, not always. For example, sqrt(2) is irrational (1.41421...), but sqrt(2)/sqrt(2) = 1. 1 is a rational number. Similarly, 2*sqrt(2) is irrational (2.82842...), but sqrt(2)/(2*sqrt(2)) = 1/2. 1/2 is a rational number.


How can be the product of 2 irrational numbers a rational numbers 5?

5*sqrt(2) is one irrational number. 1/sqrt(2) is another irrational number.Their product is 5!5*sqrt(2) is one irrational number. 1/sqrt(2) is another irrational number.Their product is 5!5*sqrt(2) is one irrational number. 1/sqrt(2) is another irrational number.Their product is 5!5*sqrt(2) is one irrational number. 1/sqrt(2) is another irrational number.Their product is 5!


Is a rational number times a irrational number?

Can be irrational or rational.1 [rational] * sqrt(2) [irrational] = sqrt(2) [irrational]0 [rational] * sqrt(2) [irrational] = 0 [rational]


Is 2 a rational number or irrational?

It is rational. It is a whole number so it cannot be irrational.


Why is phi an irrational number?

phi = [1+sqrt(5)]/2 sqrt(5) is irrational and so phi is irrational.


Is 1.5 a irrational number?

NO!!! Because 1.5 can be converted to a quotient ; 1 1/2 or 3/2 . Irrational number are those were the decimal goes to infinity and the decimal digits are in no particulr orderr. 'pi' is the classic axample at 3.141592.....


Is two fourths an irrational number?

2/4 which is 1/2 simplified is a rational number


What is an irrational number between 1 and root 2?

(root 2)/3


Is a repeating decimal a rational or irrational number?

It is an irrational number. Actually it is a rational number. Think 2/3=.6666666, 1/9=.11111111.