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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

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