(a) 4 (c) 12 (b) 3 (d) 6 5. The co-efficient of x in the expansion...

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(a) 4 (c) 12 (b) 3 (d) 6 5. The co-efficient of x in the expansion of (1 - 2x + 3 x) (1 + 1)) (a) 56 is: (b) 65 (d) 62 (c) 154 6. In the expansion of (71/3 + 111/9)6561, the number of terms free from radicals is: (a) 730 (c) 725 (b) 729 (d) 750 7. The term independent of x in the expansion of 1- 15 16 (x =) ( ++ ) is: -3 (c) 1 (b) 0 (d) 3 17 the coefficients of the (a) 4 (c) 12 (b) 3 (d) 6 5. The co-efficient of x in the expansion of (1 - 2x + 3 x) (1 + 1)) (a) 56 is: (b) 65 (d) 62 (c) 154 6. In the expansion of (71/3 + 111/9)6561, the number of terms free from radicals is: (a) 730 (c) 725 (b) 729 (d) 750 7. The term independent of x in the expansion of 1- 15 16 (x =) ( ++ ) is: -3 (c) 1 (b) 0 (d) 3 17 the coefficients of the