Question 12 please help guys
Attachments:
Answers
Answered by
2
(1 + x)ⁿ/(1 - x) = (C₀ + C₁x + C₂x² + .... + Cnxⁿ)(1 + x + x² + ..... )
The coefficient of x^r = C₀ + C₁ + C₂ + ... + Cr = 2ⁿ for r = n.
Coefficient of x^r = C₀ + C₁ + C₂ + ... + Cr if r > n.
Therefore, r ≥ n.
#BeBrainly
Similar questions