Q29Fill in the blanks
The coefficient of a b in the expansion of − is _________. a 3 b 4 10 1 −2b 1120 − 6 4 [Hint : T5 = C 4 3 = 27 a b ]
The coefficient of a b in the expansion of − is _________. a 3 b 4 10 1 −2b 1120 − 6 4 [Hint : T5 = C 4 3 = 27 a b ]