91- 6303239042
Binomial Expansion of $$(a+b)^n-(a-b)^n$$
## Formula
$$
(a+b)^n-(a-b)^n=2\sum_{\substack{r=0\\r\text{ odd}}}^{n}{}^nC_ra^{n-r}b^r
$$
## Usage
- Used to isolate odd powers in binomial expansions.
Sign in
Please select an account to continue using cracku.in
↓ →
Binomial Expansion of $$(a+b)^n-(a-b)^n$$
## Formula
$$
(a+b)^n-(a-b)^n=2\sum_{\substack{r=0\\r\text{ odd}}}^{n}{}^nC_ra^{n-r}b^r
$$
## Usage
- Used to isolate odd powers in binomial expansions.
Start your IIM journey with the right preparation and crack CAT 2026.
Educational materials for CAT preparation
