NCERT Example 5 - Sets
Question: Match the following sets with their descriptions: {P, R, I, N, C, A, L}; {0}; {1, 2, 3, 6, 9, 18}; {3, -3}.
Answer: (i) letters of PRINCIPAL; (ii) {x : x is an integer and x + 1 = 1}; (iii) positive divisors of 18; (iv) {x : x is an integer and x^2 - 9 = 0}.
Full step-by-step NCERT solution with diagrams on Something by Zero.