Q. Kaidah pencacahan•1. 3!2. 2! + 5!3. 2! + 6!​

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Q. Kaidah pencacahan•1. 3!2. 2! + 5!3. 2! + 6!​

Jawaban:

1. 3!

= 3.2

= 6

2. 2! + 5!

= 7!

= 7.6.5.4.3.2.1

= 5040

3. 2! + 6!

= 8!

= 8.7.6.5.4.3.2.1

= 40.320

Jawaban:

1. 6

2. 122

3. 722

Penjelasan dengan langkah-langkah:

1. 3!

= (3×2×1)

= (6×1)

= 6

2. 2! + 5!

= (2×1) + (5×4×3×2×1)

= 2 + (20×3×2×1)

= 2 + (60×2×1)

= 2 + (120×1)

= 2 + 120

= 122

3. 2! + 6!

= (2×1) + (6×5×4×3×2×1)

= 2 + (30×4×3×2×1)

= 2 + (120×3×2×1)

= 2 + (360×2×1)

= 2 + (720×1)

= 2 + 720

= 722