jam 12 lomba mat guys :v menang ga ya guys :v , menang 10 JT :v gw bagi serebu :v
q.
1!×7!!+9!
105×5!
1+2+3+4+5×15
Note : canda lh guys gw juga ga yakin untuk menang :v
q.
1!×7!!+9!
105×5!
1+2+3+4+5×15
Note : canda lh guys gw juga ga yakin untuk menang :v
Jawaban:
1!×7!!+9!
=1×105+362,880
=105+362,880
=362,985
105×5!
=105×120
=12,600
1+2+3+4+5×15
=15×5+4+3+2+1
=75+4+3+2+1
=79+3+2+1
=82+2+1
=84+1
=85.
perkalian terlebih dahulu.
maaf kalo salah.
Jawaban:
1!×7!!+9! =
= 1 × (7×5×3×1) + (9×8×7×6×5×4×3×2×1)
= 1 × (35×3×1) + (72×7×6×5×4×3×2×1)
= 1 × (105×1) + (504×6×5×4×3×2×1)
= 1 × 105 + (3.024×5×4×3×2×1)
= 1 × 105 + (15.120×4×3×2×1)
= 1 × 105 + (60.480×3×2×1)
= 1 × 105 + (181.440×2×1)
= 1 × 105 + (362.880×1)
= 1 × 105 + 362.880
= 105 + 362.880
= 362.985 ☑
===========================================
105×5! =
= 105×(5×4×3×2×1)
= 105 × (20×3×2×1)
= 105 × (60×2×1)
= 105 × (120×1)
= 105 × 120
= 12.600 ☑
===========================================
1+2+3+4+5×15 =
= 1+2+3+4+(5×15)
= 1+2+3+4+75
= 3+3+4+75
= 6+4+75
= 10+75
= 85 ☑
Penjelasan dengan langkah-langkah:
Moga membantu :3
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