Контрольный опрос!5! + 6!━━━━━━Note : Tarawih moment >///<​

5! + 6!

= (5.4.3.2.1) + (6.5.4.3.2.1)

= (20.3.2.1) + (30.4.3.2.1)

= (60.2.1) + (120.3.2.1)

= (120.1) + (360.2.1)

= 120 + (720.1)

= 120 + 720

= 840

5! + 6! = 840

Pembahasan

= 5! + 6!

= (5 × 4 × 3 × 2 × 1) + (6 × 5 × 4 × 3 × 2 × 1)

= (20 × 3 × 2 × 1) + (30 × 4 × 3 × 2 × 1)

= (60 × 2 × 1) + (120 × 3 × 2 × 1)

= (120 × 1) + (360 × 2 × 1)

= 120 + (720 × 1)

= 120 + 720

= 840