Roots that are irrational are called surds.
There are Irrational Numbers that are not surds since they are not roots of any equation.
For example, Pi.
Rational roots, such as square root of 4, are not surds.
Yes. To find it, evaluate both irrationals until the numbers show a difference in one of their later digits. Truncate the irrationals after this digit, sum them, then divide by 2. Job done.
Rational numbers are numbers that can be written as a fraction. Real numbers are any number, including irrationals.
Surds are normally irrational numbers.
No. For example take π and π-3 the difference of these 2 irrationals is 3.
No. Surds are a part of maths, and are the opposite of powers.
the limit does not exist
Irrationals are numbers that cannot be expressed as a ratio of two integers, a and b where b is not zero, in the form a/b.
No, surds can never be negative.
Whoever it was who discovered that if you had a square whose sides were one unit long, the lengths of its diagonals were sqrt(2) - surds!
A surd is a number expressed as a square root (or some other root). Such roots are usually irrational; but irrational numbers also include other numbers, which CAN'T be expressed as the root of a rational number. For example, pi and e.
Surds are normally irrational numbers but they can be simplified for instance the square root of 12 can be expressed as 2 times the square root of 3