1.) 14!! = ...
2.) 13!! = ...
3.) 12!! = ...
4.) 11!! = ...
Diketahui :
Faktorial
1.) 14!!
2.) 13!!
3.) 12!!
4.) 11!!
Ditanya :
Hasil dari faktorial tersebut ...?
Dijawab :
1.) 14!!
= 14 × 12 × 10 × 8 × 6 × 4 × 2
= 168 × 10 × 8 × 6 × 4 × 2
= 1.680 × 8 × 6 × 4 × 2
= 13.440 × 6 × 4 × 2
= 80.640 × 4 × 2
= 322.560 × 2
= 645.120 √
2.) 13!!
= 13 × 11 × 9 × 7 × 5 × 3 × 1
= 143 × 9 × 7 × 5 × 3 × 1
= 1.287 × 5 × 3 × 1
= 45.045 × 3 × 1
= 135.135 √
3.) 12!!
= 12 × 10 × 8 × 6 × 4 × 2
= 120 × 8 × 6 × 4 × 2
= 960 × 6 × 4 × 2
= 5.760 × 4 × 2
= 23.040 × 2
= 23.040 + 23.040
= 46.080
4.) 11!!
= 11 × 9 × 7 × 5 × 3 × 1
= 99 × 7 × 5 × 3 × 1
= 693 × 5 × 3 × 1
= 3.465 × 3 × 1
= 10.395 × 1
= 10.395 √
Keterangan :
→ hasil dari 14!! adalah 645.120
→ hasil dari 13!! adalah 135.135
→ hasil dari 12!! adalah 46.080
→ hasil dari 11!! adalah 10.395
semoga membantu
Jawaban:
───────────
1.) 14!! = 645.120
───────────
2.) 13!! = 135.135
───────────
3.) 12!! = 46.080
───────────
4.) 11!! = 10.395
───────────
PEMBAHASAN
1.) 14!!
= 14 × 12 × 10 × 8 × 6 × 4 × 2
= 168 × 80 × 48
= 13.440 × 48
= 645.120 ☑
2.) 13!!
= 13 × 11 × 9 × 7 × 5 × 3 × 1
= 143 × 63 × 15
= 9.009 × 15
= 135.135 ☑
3.) 12!!
= 12 × 10 × 8 × 6 × 4 × 2
= 120 × 48 × 8
= 5.760 × 8
= 46.080 ☑
4.) 11!!
= 11 × 9 × 7 × 5 × 3 × 1
= 99 × 35 × 3
= 3.465 × 3
= 10.395 ☑
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