Q.7!apa ada yang on?
- 7!
- 7 × 6 × 5 × 4 × 3 × 2 × 1
- 42 × 5 × 4 × 3 × 2 × 1
- 210 × 4 × 3 × 2 × 1
- 840 × 3 × 2 × 1
- 2.520 × 2 × 1
- 5.040 × 1
- 5.040
____________
Soal
7! = n
Pembahasan
= ((7 × 6) × 5 × 4 × 3 × 2 × 1)
= ((42 × 5) × 4 × 3 × 2 × 1)
= ((210 × 4) × 3 × 2 × 1)
= ((840 × 3) × 2 × 1)
= ((2.520 × 2) × 1)
= 5.040 × 1
= 5.040
Kesimpulan
Jadi, hasil dari 7! = 5.040