Mathematics · Binomial Theorem
If n is a positive integer and Ck = nCk, then Σk=1n k3(CkCk-1)2 equals:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1112 n(n + 1)(n + 2)
- 2112 n2(n + 1)(n + 2)
- 3112 n(n + 1)(n + 2)2
- 4112 n(n + 1)2(n + 2)✓
Correct answer
112 n(n + 1)2(n + 2)
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