Is 2pi a rational number?

Is 2 pi a rational number?

Is pi a rational number?

True/false pi is a rational number.

The sum of two rational numbers is a rational number.

pi is a rational number.

Which one of the following is false : (i) Every rational number is a real number (ii) Every integer is a real number (iii) sqrt2 is a rational number

If cos x*cos2x*cos4x*cos8x for x=(2 pi)/(3) is a rational number (p)/(q) where p,q in N .then the least value of (p+q) is

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

Are the following pair of statements negation of each other ? (i) The number pi is not a rational number.(ii)The number pi is not an irrational number.