91- 6303239042
Sum of Coefficients
## Formula
For:
$$P(x)=(a+bx)^n$$
the sum of all coefficients is:
$$P(1)=(a+b)^n$$
## Special Case
For:
$$(1+x)^n$$
the sum of coefficients is:
$$2^n$$
## Usage
- Used to find the sum of coefficients without expanding the expression.
