{ quiz }7!! – 5!! =》pakai cara
Penjelasan dengan langkah-langkah:
7!! – 5!!
= (7 × 5 × 3 × 1) – (5 × 3 × 1)
= (35 × 3 × 1) – (15 × 1)
= (105 × 1) – 15
= 105 – 15
= 90
Soal :
7!! – 5!! = ?
Jawab :
7!! – 5!!
= ( 7 × 5 × 3 × 1 ) – 5!!
= ( 35 × 3 × 1 ) – 5!!
= ( 35 × 3 ) – 5!!
= 105 – 5!!
= 105 – ( 5 × 3 × 1 )
= 105 – ( 15 × 1 )
= 105 – 15
= 90
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