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Surds are based on roots.

Root 8 can be split into root 4 and root 2; as there's a root to 4, get that number, and multiply it by the remaining root.

So root 8 = 2 root 2.

Root 40 would be 2 root 10

Root 48 would be root 4, root 4, root 3

Root 48 = 4 root 3.

Q: Explain surd to me as mathematics topic?

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In order for us to be able to explain a topic we need more information. Such as the topic you need explained to you.

it is a mathematics source and is hard to explain

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A surd is an irrational number that can't be expressed as a fraction as for example the square root of 2

Yes the square root of 2 is a surd which is an irrational number that can't be expressed as a fraction.

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probability

Infinite surd is a term used in mathematics. The definition of an infinite surd is a never ending irrational number with an exact value that would be left in square root form.

=See the section in this article about that topic. http://en.wikipedia.org/wiki/Set_(mathematics)

statistics

Yes it is a surd

If the value of the surd is positive, then it will be another surd. Otherwise it will be a complex number.

A surd is the square root of an integer (whole number), e.g. square root of 2 is a surd. Pi is not the square root of an integer so not a surd, just an irrational number

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In order for us to be able to explain a topic we need more information. Such as the topic you need explained to you.

I am pretty sure that the cube root of negative seven is a surd. I checked on the calculator.......and it showed a negative number.....??I think when it is not a surd...it's supposed to say error, so the number probably means that it is a surd..

No. It is not a criminal or civil offence!

it is a mathematics source and is hard to explain