Q_nantikan_

Jawaban:

No.1

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

___________________________

No.2

3!

= ( 3 × 2 ) × 1

= ( 6 × 1 )

= 6

___________________________

No.3

5!

= ( 5 × 4 ) × 3 × 2 × 1

= ( 20 × 3 ) × 2 × 1

= ( 60 × 2 ) × 1

= ( 120 × 1 )

= 120

____________________________

7! + 3! – 5! = ...

= ( 5.040 + 6 ) – 120

= 5.046 – 120

= 4.926

Jawaban:

7! + 3! – 5! = …

• 7! = (7×6×5×4×3×2×1)
• 3! = (3×2×1)
• 5! = (5×4×3×2×1)
• (7×6×5×4×3×2×1) + (3×2×1) – (5×4×3×2×1)
• 5.040 + 6 – 120
• 4.926