which represent a rational number√325,√110,√65,√80
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Answer:
CALCULUS IS A THEORY OF MEASUREMENT. The necessary numbers are the rationals and irrationals. But let us start at the beginning.
The following numbers of arithmetic are the counting-numbers or, as they are called, the natural numbers:
1, 2, 3, 4, and so on.
(At any rate, those are their Arabic numerals.)
If we include 0, we have the whole numbers:
0, 1, 2, 3, and so on.
And if we include their algebraic negatives, we have the integers:
0, ±1, ±2, ±3, and so on.
± ("plus or minus") is called the double sign.
The following are the square numbers, or the perfect squares:
1 4 9 16 25 36 49 64, and so on.
And these are their roots:
1 2 3 4 5 6 7 8, and so on.
The student is no doubt familiar with the radical sign: radical.
radical = 5.
"The square root of 25 is 5."
Rational and irrational numbers