MixedEasyQuestion 290014
Question
The value of ⁷C₃ + ⁷C₄ is:
- A⁸C₄Correct
- B⁷C₃
- C¹⁴C₃
- D⁸C₃
Correct answer
⁸C₄
Explanation
Pascal's identity: ⁿCᵣ + ⁿCᵣ₊₁ = ⁿ⁺¹Cᵣ₊₁. So ⁷C₃ + ⁷C₄ = ⁸C₄ = 70.
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Question 290014
JEE Mathematics · Easy
Permutations and Combinations: Mixed MCQ
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