Write the relation `R={(x,x^3)}` :x is a prime number less than 10}in roaster form.

Express the following set in roster method :{x:x is a prime number less than 8}

If A={x:x is a natural number multiple of 3} and B={x:x is a natural number less than 6} then A∩B.

Write the relation R={(a,b):b+1=2a,a,b in {1,2,3,….,10}} in roaster form.

Given the sets A = {1,2, 3, 4, 5} and B = {1, 3, 5}, write R as a set of ordered pairs, if the relation R from A to B is defined by ‘x isless than y’. State the domain and the range of the relation

Write the negation of the followings: (vi) A rational number x is a real number

A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, find the probability that it bears a prime number less than 30.

D = {x : x is a prime number E = {x : x is a natural number divisible by 3 and less than 15} F = {x: x is an odd natural number less than 18). Find D uu F

D = {x : x is a prime number E = {x : x is a natural number divisible by 3 and less than 15} F = {x: x is an odd natural number less than 18). Find E uu F

If U={x:x is a natural number <6},A={x:x is a prime number <6},B={x:x is an even number less than 5},find B'−A'.