Mathematics · Binomial Theorem
(1 - 2x + 3x2 - 4x3 + ...)-n के प्रसार में xn का गुणांक क्या है?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1n2
- 2(2n)!(n+1)! (n-1)!
- 3(2n)!(n!)2✓
- 4(-1)n+1n
सही उत्तर देखें
(2n)!(n!)2
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