1. consider the ideal <0 >of z. then <0> is ... (a) a maximal ideal of z but not prime ideal of z (b) a prime idçal of z but not maximal ideal of z (c) neither

1. Consider the ideal <0 >of Z. Then <0> is ... (A) a maximal ideal of Z but not prime ideal of Z (B) a prime idçal of Z but not maximal ideal of Z (C) neither maximal ideal nor prime ideal of Z (D) both maximal ideal and prime ideal of Z 2. Which one is not a solvable group ? (A) S (B) S C) Ss (D) None of these 3 The relation of conjugacy is . on a group G. (A) reflexive (B) symmetric (C) transitive (D) All of these 4. Which of the following is true for the square matrix: (2 1 0 A =0 2 1 0 0 2 (A) A-6A-12A +81 0 (B) A-6A + 12A-81-0 (C) A+ 6A- 12A +81 0 (D) A+6A-12A 1-0 5. Which of the following is true for the square matrix: (2 1 0) A =0 2 12 00 2 (A) A-(A2-6A +121 (B) A-(4+6A-121) CA-(A-6A-121) (D) A--A64-121)