Is a `pi`rational number

Is 2 pi a rational number?

Give an example of each,of two irrational numbers whose: difference is a rational number.difference is an irrational number. sum is a rational number.sum is an irrational number.product is a rational number.product is an irrrational number.quotient is a rational number.quotient is an irrational number.

Write negation of the statement: “ pi is not a rational number”.

Statement I: A set of numbers that can be expressed as (p)/(q) where p and q are integers q!=0 are called rational numbers.Statement II:pi( pi ) is a rational number.

Is pi a rational or an irrational numbers?

Let the exact value of cos((pi)/(7))+cos^(2)((pi)/(7))-2cos^(3)((pi)/(7)) is a rational number in the form (p)/(q), where p and q are integers.Find (p+q)

The number pi is a fraction (b) a recurring decimal a rational number (d) an irrational number

Reciprocal of every rational number is a rational number.

Every natural number is a rational number but a rational number need not be a natural number