Question 13
Permutations and CombinationsEvaluate: 4P2 + 4C2 − 4P3.
- A.18
- B.6
- C.−6
- D.−18
Show the answer and explanation
Answer: C (−6)
Explanation
⁴P₂ = 12, ⁴C₂ = 6, ⁴P₃ = 24. 12 + 6 − 24 = −6.
Evaluate: 4P2 + 4C2 − 4P3.
Answer: C (−6)
⁴P₂ = 12, ⁴C₂ = 6, ⁴P₃ = 24. 12 + 6 − 24 = −6.