They are used to approximate functions like sin(x) and cos(x), so a calculator, for example, can calculate sin (x) and cos(x), which are infinite series functions.
In general, you cannot. An infinite number divided by any non-zero number is still infinite. An infinite number divided by another infinite number may or may not be infinite.
Yes and yes. eg x = y + 1 has an infinite number of solutions, and {sin(x) + cos(x) = 2} does not have a solution.
It is infinite.
The infinite series is 1 - x2/2! + x4/4! - x6/6! + ...
If you mean the number pi, that has an infinite number of decimals.If you mean the number pi, that has an infinite number of decimals.If you mean the number pi, that has an infinite number of decimals.If you mean the number pi, that has an infinite number of decimals.
Each integer has a finite number of factors and an infinite number of multiples.
How about 1 and 149. There are an infinite number of pairs, an infinite number of triplets, an infinite number of quadruplets, ... an infinite number of n-tuples. And n, itself, can be infinitely large.
NO because there is an infinite number of them, just like there is an infinite number of primes. In fact, if there is an infinite number of primes there must be an infinite number of composite numbers too... do you see why?
A infinite number is a number that goes on forever.
Pi is an irrational number. As such, it has an infinite number of digits.
The radius of a circle or a sphere has infinite number of points.