Question

The coefficient of 3 in 19x3 is​

Answer 1

Answer:

irst expand the term (1 + 2x )^4 by binomial expansion. (1 + 2x )^4 = ^4C0 (1)^4 (2x)^0 + ^4C1 (1)^3 (2x)^1 + ^4C2 (1)^2 (2x)^2 + ^4C3 (1)^1 (2x)^3 ...

Answer 2

Answer:

what do you mean........??