Question

what is the use of irrational number

Answer 1

(1) Use of pi(π) : pi is an irrational number which is use in many purpose in Math like: Area of Circle = π * r2 where pi (π) = 3.14 and r is a radius; Circumference of circle = π * d where d is a Diameter of circle, (2) Use of exponential (e): e is an irrational number which is used in many parts of math- In exponential series: ex = 1 + x2 + …...... 2; In Logarithm series: ln x = 1 – x + x2 + …........ 2; (3) Use of Cube root: cube root is basically used to find out Area And Perimeter of cube and cuboids because both have three dimension structures. (4) construction companies that gets an order to build a cylindrical structure would need to use the irrational number pi to calculate what needs to be done. (5) Calculating the interest compounded continually on a loan - this uses the irrational number

Answer 2

Answer:

Irrational numbers are numbers that cannot be expressed as the ratio of two whole numbers.

This is opposed to rational numbers, like 2, 7, one-fifth and -13/9, which can be, and are, expressed as the ratio of two whole numbers.

When expressed as a decimal, irrational numbers go on forever after the decimal point and never repeat.

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