C(n,r)=?
C(n,r)=C(4,1)
=4!(1!(4−1)!)
=4!1!×3!
= 4
double check kung tama
Answer:
✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿
━┈─────────────────────┈━
<Question & Answer.
Jake, mike, Ron, and bob are waiting in line to buy concert tickets. In how many different ways can they stand in line?
✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿✿
━┈─────────────────────┈━
Step-by-step explanation:
#Carry on Learning
#Hope it helps
#Mark me as Braillest
