If `A={x|x` is prime number and `x<30},` find the number of different rational numbers whose numerator and denominator belong to `Adot`

If A - {x|x is a prime number and x B = {x|2x + 1, x in w and x Find BnnA ?

If A = { x//x is a prime number and x B = { x//2x+1, x in w and x AnnB

If A = { x//x is a prime number and x B = { x//2x+1, x in w and x BnnA

If A = { x//x is a prime number and x B = { x//2x+1, x in w and x A-B

If A = { x//x is a prime number and x B = { x//2x+1, x in w and x B-A. What do you observe?

LetA={x/x is a prime number and x<30 ).The number of rational numbers whose numerator and denominator belong to A is of the form 10a+1 then a=

IF A={x:x in N, x lt 10 }, B={x:x is a prime number and x lt 10 }, then show that A-B ne B-A with the help of Venn-diagram.

The setA={x:x is a prime number and divisor of 6} is equal to:

If A={x:x is a prime number ,x<10},B={x:x is a natural number},find A ∩ B .