Q: Give an example of irrational number?

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It is impossible to have a surd that is not irrational. Surds are defined to be an irrational number (square root of a number).

Yes. For example, the square root of 3 (an irrational number) times the square root of 2(an irrational number) gets you the square root of 6(an irrational number)

An irrational number is a real number that cannot be expressed as a ratio of two integers, pq/ where q > 0. sqrt(2) and pi are examples.

pi is an example of an irrational number.

Irrational numbers are decimal numbers that can't be expressed as fractions. An example is the square root of 2

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No, but you can add an irrational number and a rational number to give an irrational.For example, 1 + pi is irrational.

It is impossible to have a surd that is not irrational. Surds are defined to be an irrational number (square root of a number).

Yes. For example, the square root of 3 (an irrational number) times the square root of 2(an irrational number) gets you the square root of 6(an irrational number)

An irrational number is a real number that cannot be expressed as a ratio of two integers, pq/ where q > 0. sqrt(2) and pi are examples.

pi is an example of an irrational number.

Irrational numbers are decimal numbers that can't be expressed as fractions. An example is the square root of 2

No, they are not. An irrational number subtracted from itself will give 0, which is rational.

No. For example, -root(2) + root(2) is zero, which is rational.Note that MOST calculations involving irrational numbers give you an irrational number, but there are a few exceptions.

Any irrational number, when multiplied by 0.5 will give an irrational number.

Any irrational number, added to 0.4 will give an irrational number.

Yes normally it does

You wont be able to add a rational number and an irrational number and get a number not in a fraction ( 3 + 22/7) (21/7 + 22/7 = 43/7) So, yes as you see in the example above it made another irrational number.