Alternating Sum of Coefficients

Rarely Tested

$$ \sum_{k=0}^{n} (-1)^k \binom{n}{k} = 0 $$
for $$n \geq 1$$.
No related questions available for this formula yet.

Go back to topics

Join CAT 2026 course by 5-Time CAT 100%iler

Start your IIM journey with the right preparation and crack CAT 2026.