Penjelasan dengan langkah-langkah:
1!
=> 1 × 1
=> 1
5!
=> 5 × 4 × 3 × 2 × 1
=> 20 × 3 × 2 × 1
=> 60 × 2 × 1
=> 120 × 1
=> 120
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Penjelasan dengan langkah-langkah:
1!
=> 1 × 1
=> 1
5!
=> 5 × 4 × 3 × 2 × 1
=> 20 × 3 × 2 × 1
=> 60 × 2 × 1
=> 120 × 1
=> 120
___________________________
1! + 5!
=> 1 + 120
=> 121 ✔