用“!”定义一种新运算,知道1!=1,=2×1,=3×2×1,=4×3×2×1请你求出100!/98!的值·画图·并解答
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![用“!”定义一种新运算,知道1!=1,=2×1,=3×2×1,=4×3×2×1请你求出100!/98!的值·画图·并解答](/uploads/image/z/659279-47-9.jpg?t=%E7%94%A8%E2%80%9C%21%E2%80%9D%E5%AE%9A%E4%B9%89%E4%B8%80%E7%A7%8D%E6%96%B0%E8%BF%90%E7%AE%97%2C%E7%9F%A5%E9%81%931%21%3D1%2C%3D2%C3%971%2C%3D3%C3%972%C3%971%2C%3D4%C3%973%C3%972%C3%971%E8%AF%B7%E4%BD%A0%E6%B1%82%E5%87%BA100%21%2F98%21%E7%9A%84%E5%80%BC%C2%B7%E7%94%BB%E5%9B%BE%C2%B7%E5%B9%B6%E8%A7%A3%E7%AD%94)
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用“!”定义一种新运算,知道1!=1,=2×1,=3×2×1,=4×3×2×1请你求出100!/98!的值·画图·并解答
用“!”定义一种新运算,知道1!=1,=2×1,=3×2×1,=4×3×2×1请你求出100!/98!的值
·画图·并解答
用“!”定义一种新运算,知道1!=1,=2×1,=3×2×1,=4×3×2×1请你求出100!/98!的值·画图·并解答
"!"是阶乘的意思.
100!= 100×99×98×97×96×95……×3×2×1
98!=98×97×96×95……3×2×1
所以100!/98!=100 ×99=9900
100x99x98x97x96……x1/98x97x96x95x94……x1
=100x99
=9900