Q.
5! + 7!
6!
4!
pakai cara
no ngasal
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5! + 7!
6!
4!
pakai cara
no ngasal
[tex][tex{\boxed{\blue{\boxed{\purple{\boxed{\red{quizzz \: by : E }}}}}}}[/tex][/tex]
Jawaban:
1.5!+7!
=(5×4×3×2×1) + (7×6×5×4×3×2×1)
=(20×3×2×1) + (42×5×4×3×2×1)
=(60×2×1) + (210×4×3×2×1)
=(120×1) + (840×3×2×1)
=120 + (2.520×2×1)
=120 + (5.040×1)
=120+5.040
=5.160
2. 6!=
=6×5×4×3×2×1
=30×4×3×2×1
=120×3×2×1
=360×2×1
=720×1
=720
3. 4!
=4×3×2×1
=12×2×1
=24×1
=24
Penyelesaian :
= 5! + 7!
= ( 5 × 4 × 3 × 2 × 1 ) + 7!
= ( 20 × 3 × 2 × 1 ) + 7!
= ( 60 × 2 × 1 ) + 7!
= ( 120 × 1 ) + 7!
= 120 + 7!
= 120 + ( 7 × 6 × 5 × 4 × 3 × 2 × 1 )
= 120 + ( 42 × 5 × 4 × 3 × 2 × 1 )
= 120 + ( 210 × 4 × 3 × 2 × 1 )
= 120 + ( 840 × 3 × 2 × 1 )
= 120 + ( 2.520 × 2 × 1 )
= 120 + ( 5.040 × 1 )
= 120 + 5.040
= 5.160
= 6!
= 6 × 5 × 4 × 3 × 2 × 1
= 30 × 4 × 3 × 2 × 1
= 120 × 3 × 2 × 1
= 360 × 2 × 1
= 720 × 1
= 720
= 4!
= 4 × 3 × 2 × 1
= 12 × 2 × 1
= 24 × 1
= 24