Combinatorial Proofs: C(n,k)=C(n-1,k-1)+C(n-1,k)
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Why it's on BrighterTube
From a channel a BrighterTube curator approved in full · 80% confidenceFrom a channel Lumen includes in full: Mathispower4u (James Sousa, a maths instructor) has thousands of short worked examples covering arithmetic through calculus, statistics and linear algebra, organised to match course topics.
What you'll learn
A 4-minute video from Mathispower4u's catalogue; the title names its topic.
Video by Mathispower4u, played through YouTube's embedded player.
Part of Counting (Discrete Math)