2!! + 7!! - 9!
2!! =
2
7!! =
7 × 5 × 3
35 × 3
= 105
9! =
9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1
= 362.880
2 + 105 - 362.880
107 - 362.880
= -362.773
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2!! + 7!! - 9!
2!! =
2
7!! =
7 × 5 × 3
35 × 3
= 105
9! =
9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1
= 362.880
2 + 105 - 362.880
107 - 362.880
= -362.773
= 2
7!!
= 7 × 5 × 3 × 1
= 35 × 3 × 1
= 105 × 1
= 105
9!
→ 9(8)(7)(6)(5)(4)(3)(2)(1)
→ 72(42)(20)(6)
→ 3.024(120)
→ 362.880
KESIMPULAN:
= 2!! + 7!! - 9!
= 2 + 105 - 362.880
= 107 - 362.880
= -362773
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Answer by Tee Kay