10!! + 9!! = ...
8! - 6! = ...
Diketahui :
1. 10!! + 9!!
2. 8! - 6!
Ditanya :
hasilnya adalah?
Jawaban :
→ 1
= 10!! + 9!!
= ( 10 × 8 × 6 × 4 × 2 ) + 9!!
= ( 80 × 6 × 4 × 2 ) + 9!!
= ( 480 × 4 × 2 ) + 9!!
= ( 1.920 × 2 ) + 9!!
= 3.840 + 9!!
= 3.840 + ( 9 × 7 × 5 × 3 × 1 )
= 3.840 + ( 63 × 5 × 3 × 1 )
= 3.840 + ( 315 × 3 × 1 )
= 3.840 + ( 945 × 1 )
= 3.840 + 945
= 4.785
→ 2
= 8! - 6!
= ( 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 ) - 6!
= ( 56 × 6 × 5 × 4 × 3 × 2 × 1 ) - 6!
= ( 336 × 5 × 4 × 3 × 2 × 1 ) - 6!
= ( 1.680 × 4 × 3 × 2 × 1 ) - 6!
= ( 6.720 × 3 × 2 × 1 ) - 6!
= ( 20.160 × 2 × 1 ) - 6!
= ( 40.320 × 1 ) - 6!
= 40.320 - 6!
= 40.320 - ( 6 × 5 × 4 × 3 × 2 × 1 )
= 40.320 - ( 30 × 4 × 3 × 2 × 1 )
= 40.320 - ( 120 × 3 × 2 × 1 )
= 40.320 - ( 360 × 2 × 1 )
= 40.320 - ( 720 × 1 )
= 40.320 - 720
= 39.600
Kesimpulan :
1. Jadi hasilnya adalah 4.785
2. Jadi hasilnya adalah 39.600
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10!! + 9!! = ...
-------------------------------
8! - 6! = ...
PEMBAHASAN :
Diketahui :
1. 10!! + 9!!
2. 8! - 6!
Ditanya :
hasilnya adalah?
Jawaban :
→ 1
= 10!! + 9!!
= ( 10 × 8 × 6 × 4 × 2 ) + 9!!
= ( 80 × 6 × 4 × 2 ) + 9!!
= ( 480 × 4 × 2 ) + 9!!
= ( 1.920 × 2 ) + 9!!
= 3.840 + 9!!
= 3.840 + ( 9 × 7 × 5 × 3 × 1 )
= 3.840 + ( 63 × 5 × 3 × 1 )
= 3.840 + ( 315 × 3 × 1 )
= 3.840 + ( 945 × 1 )
= 3.840 + 945
= 4.785
→ 2
= 8! - 6!
= ( 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 ) - 6!
= ( 56 × 6 × 5 × 4 × 3 × 2 × 1 ) - 6!
= ( 336 × 5 × 4 × 3 × 2 × 1 ) - 6!
= ( 1.680 × 4 × 3 × 2 × 1 ) - 6!
= ( 6.720 × 3 × 2 × 1 ) - 6!
= ( 20.160 × 2 × 1 ) - 6!
= ( 40.320 × 1 ) - 6!
= 40.320 - 6!
= 40.320 - ( 6 × 5 × 4 × 3 × 2 × 1 )
= 40.320 - ( 30 × 4 × 3 × 2 × 1 )
= 40.320 - ( 120 × 3 × 2 × 1 )
= 40.320 - ( 360 × 2 × 1 )
= 40.320 - ( 720 × 1 )
= 40.320 - 720
= 39.600
Kesimpulan :
1. Jadi hasilnya adalah 4.785
2. Jadi hasilnya adalah 39.600