If the number of terms in the expansion of (1-2/x+4/(x^2))^n , x!= | Filo

class 11

Math

Algebra

Binomial Theorem

646
151

If the number of terms in the expansion of is 28, then the sum of the coefficients of all the terms in this expansion, is :

1. 64
2. 2187
3. 243
4. 729