Which of the following is incorrect?
(a) ⁿCᵣ = ⁿC n ₋ ᵣ (b) ⁿCᵣ = ⁿ ⁻ ¹Cᵣ + ⁿCn₋ ᵣ
(c) ⁿCᵣ = ⁿ ⁻ ¹Cᵣ + ⁿ ⁻ ¹Cᵣ ₋ ₁ (d) r ! ⁿCᵣ = ⁿPᵣ
Answers
Answered by
0
Step-by-step explanation:
plz like this Answerplz like this Answer
plz like this Answer
Similar questions
Computer Science,
4 months ago
English,
4 months ago
Computer Science,
9 months ago
Math,
9 months ago
Math,
11 months ago
English,
11 months ago
Math,
11 months ago