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Can you ever use a calculator to determine if a number is rational or irrational?
Wiki User
∙ 13y ago
The answer to your question begins with a question to you.
How do you know what number you are interested in ? How is it specified ?
If the number is written down as a decimal, it must have a finite number of digits. This would make it a rational number.
If it is written down as a fraction, that also is rational.
If the number is specified as a procedure, that may or may not be rational. You make the determination using your head for logical thought - something calculators can't do.
So, the short answer to your question is : no, except for a few very special cases, most of which are susceptible to logical analysis anyway.
Wiki User
∙ 13y ago
Anonymous
No
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Can you add irrational number and a rational to get a rational number?
If an irrational number is added to, (or multiplied by) a rational number, the result will always be an irrational number.
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When a rational numbers is divided by an irrational number, the answer is irrational for every non-zero rational number.
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Can be irrational or rational.1 [rational] * sqrt(2) [irrational] = sqrt(2) [irrational]0 [rational] * sqrt(2) [irrational] = 0 [rational]
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If it can't be expressed as a fraction then it is an irrational number
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RATIONAL , because you can convert it to a RATION (FRACTION). Method Let P = 0.272727.... Then 100P = 27.272727.... Subtract 99P = 27 (Note the decimals to infinity subtract to zero. P = 27/99 Cancel down by '9' P = 3/11 ( Which is a RATIO/rational). Since both '3' & '11' are prime numbers this will not cancel down any further. Hence 3/11 = 0.272727....
Is 0.05 a rational or irrational number?
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Is 34.5 rational or irrational?
is 34.54 and irrational or rational. number
Is 4.121314 is a rational number or irrational?
it is a rational number but 4.121314..... is an irrational no
When an irrational number is divided by a rational number is the quotient rational or irrational?
Irrational.
Is the product of a rational number and an irrational number rational or irrational?
Such a product is always irrational - unless the rational number happens to be zero.
What is the product of rational and irrational number?
The product of a rational and irrational number can be rational if the rational is 0. Otherwise it is always irrational.
