ANSWERS 1.3 EXERCISE 1 . ( i) {2} ( i i ) {0, 1} ( i i i ) {1, p} 2 . ( i ) {0, –1, 1} ( i i ) 11 3 − ⎧ ⎫ ⎨ ⎬ ⎩ ⎭ (iii) { } 3, 2, 2 , 3 − − 3 . {1, 2, 2 2 , 2 3 , ...2 P – 1 ,(2 p –1} 4 . ( i) True ( ii ) False ( i i i ) True ( iv) True 7 . ( i ) {2, 4, 6, 8, ... , 98} ( i i ) (1,4, 9, 16, 25, 36, 49, 64, 81,} 8 . ( i ) {4, 8, 12} ( i i ) {7, 8, 9} ( i i i ) 1 3 , 1, 2 2 ⎧ ⎫ ⎨ ⎬ ⎩ ⎭ ( iv) {0, 1, 2} 9. ( i ) {4, 5, 6, ....10} ( i i ) {5} ( i i i ) {1, 2, 3, 4, 5} 10. 11. 13 . True 14 . False 15 . True 16 . True 17 . True 22 . T = {10} 24 . (i) 2 (ii) 3 (iii) 3 ( iv) 9 25 . 25 26. 20 27 . (a) 3300 (b) 4000 28 . (i) 6, (ii) 3, (iii) 9, (iv) 1, (v) 2, (vi) 6, (vii) 30, (viii) 20 29. C 30 . B 31. B 32 . D 33 . C 34 . D 35 . B 36 . B 37 . C