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

Which of the following sets are equivalent or unequal or equal sets? X = {x : x is a prime number and 3ltxlt23 } Y = {x : x is a divisor of 18}

Write the following sets in Roster form. C = {x : x is a prime number and a divisor of 6 }

Let A={x : x is a natural number}, B ={x : x is an even natural number} C={x : x is an odd natural number and D={x : x is a prime number} Find A cap B, A cap C, A cap D, B cap C, B cap D and C cap D .

Which of the following sets are equivalent or unequal or equal sets? (i) A=The set of vowels in the Englisht alphabets. B=The set of all letters in the word "VOWEL". (ii) C={2,3,4,5} D={x : x in W, 1 lt x lt 5} (iii) X={" x : x is a letter in the word LIFE"} Y={F,I,L,E} (iv) G={"x : x is a prime number and 3 "lt x lt 23} H={x : x is a divisor of 18}

Consider sets A and B given by A = {x:x is a prime number B={x:x is a natural number which divides 12} i. Write A and B in roster form. ii. Find A cup B and B-A. iii. Verify that (A cup B)-A = B-A.

Write the contrapositive and converse of the following statements. If x is a prime number, then x is odd.

Let A={1, 2, 3) and B={x|x is the prime number less than 10}. Find AtimesB and BtimesA .

Let A = {x : x is a prime number i. Write A in tabular form. ii. Find A - B and B - A. iii. Find (A -B) cup (B - A)