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Well, (pi) x (1/pi) = 1 .

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โˆ™ 2011-09-05 00:02:07
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Q: Can you multiply an irrational number times an irrational number and get a rational number?
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Related questions

Is 3 times pi over two rational?

No; since pi is irrational if you multiply it by a rational number it is still irrational


Does a rational number times an irrational number equal a rational number?

No. If the rational number is not zero, then such a product is irrational.


Is the product of a rational number and irrational number always rational?

No.A rational times an irrational is never rational. It is always irrational.


What is the result of an irrational number times an rational number?

Unless the rational number is zero, the answer is irrational.


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 the product of a rational number and an irrational number an irrational?

Not necessarily. 0 times any irrational number is 0 - which is rational.


What does a rational number times an irrational number equal?

The product of 0 and an irrational is 0 (a rational), the product of a non-zero rational and any irrational is always irrational.


Why the product of nonzero rational number and a rational number is an irrational?

Actually the product of a nonzero rational number and another rational number will always be rational.The product of a nonzero rational number and an IRrational number will always be irrational. (You have to include the "nonzero" caveat because zero times an irrational number is zero, which is rational)


Will you always get an irrational number when you multiply two irrational numbers if no provide a counterexample?

The square root of 2 times the square root of 2 is rational.


Which number produces an irrational number when multiplied by?

At least one of the factors has to be irrational.* An irrational number times ANY number (except zero) is irrational. * The product of two irrational numbers can be either rational or irrational.


Is 75 rational or irrational?

75 times 75 = 5625 which is a rational number


Is there a proof to show that if you multiply an irrational number times an irrational number you get a rational number?

There cannot be a proof since your assertion is not necessarily true. sqrt(2)*sqrt(3) = sqrt(6). All three are irrational numbers.


Why the area of a circle with a rational radius must be an irrational number?

It the radius is r then the area is pi*r*r - which is pi times a rational number. pi is an irrational number, so the multiple of pi and a rational number is irrational.


Is 15 times pi a rational number?

No because 15 times pi is an irrational number


Is -7 pie rational?

Any number times pi is irrational.


Is 3 times pi a rational or an irrational?

3 times pi is an irrational number because it can't be expressed as a fraction


Why is 3.14 times 2 irrational?

It is not. It is the rational number 6.28 = 628/100.


Is 0.3pi rational or irrtional?

If you mean 0.3 times pi then it is an irrational number


Why can the area of the rectangle be irrational?

As the area of a rectangle is one side (length) multiples by the other (width), if either is irrational, then the area will be irrational. eg a rectangle with width 1 cm and diagonal 2 cm: using Pythagoras you can find out the length of the rectangle as √(2² - 1²) = √(4 - 1) = √3 which is irrational. The area of the rectangle is 1 cm × √3 cm = √3 cm² (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.


Is 10 times pi rational?

No because the value of pi as regards to a circle is an irrational number


Whole number times decimals?

A decimal, in this context, is a useless description: a decimal can be an integer, a rational number or an irrational number. Furthermore, a whole number times a decimal fraction can be a whole number, a rational number or an irrational number.For example:4 * 3.5 = 14 is a whole number times a decimal fraction = whole number.4 * 3.3 = 13.2 is a whole number times a decimal fraction = rational fraction.4 * 3.14159... [ie pi in decimal form] = 4 * pi, which is an irrational number.


Is the square root of 84 a rational number?

No because it is 2 times the square root of 21 which is an irrational numberThe square root of 84 is not a rational number


Is 2 pied a rational number?

I assume you mean 2 times pi. Since pi is irrational, 2 pi is also irrational.


Can the product of two irrational numbers be a rational number?

yes it can, look at the example √3 times the √3 is 3. these two are rational numbers.