Which of the following are examples of empty set? `{x : x^2-2=0\ a n d\ x` is rational`}`

Which of the following are examples of empty set? {x : x is a natural number, x 12}

Which of the following are examples of empty set? {x : x is a point common to any two parallel lines } .

Which of the following are examples of empty set? Set of all even prime numbers.

Which of the following sets are empty sets ? (i) { x:x^(2)=2 and x is a rational number} (ii) { x:x is an integer neither positive nor negative} (iii) { x:x is a boy student in a girls college} (iv) { x:xlt5 and also x gt 5 } (v) {x:x is a real number and x^(2)lt0}

Which of the following are the examples of empty set ? (i) {x:x in N,xlt7and xgt9} (ii) {x : x is a common point of two perpendicular lines} (iii) {x : x is an even natural number divisible by 3} (iv) {x : x^(2) = 4 and x " is an odd number"} .

Which of the following are examples of null set? (i) A ={"x:x is root of equation x + 3 =0 and "x in N} (ii) B ={x:x in Z,9x -8=0} C={x:x is letter of the word MAKE}

Which of the following are examples of null set? (i) A={x:x is a vowel in English alphabet } (ii) B = {x:x is an even number, 2lt xlt 4} (iii) C ={x: x in W }

Which of the following is the solution set for x(x-3)(x+2)gt0 ?

Which of the following conditions necessarily imply that the real number x is rational, I x^2 is rational II x^3 and x^5 are rational III x^2 and x^3 are rational

Which of the following conditions necessarily imply that the real number x is rational, I x^2 is rational II x^3 and x^5 are rational III x^2 and x^3 are rational