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Every positive integer can be represented uniquely in base 9 by
$$(c_n......c_2 c_1 c_0)_9$$= $$c_n(9^{n})+......c_2(9^{2})+c_1(9^{1})+c_0(9^{0})$$
for some nonnegative integer $$n$$, where the coefficient $$c_i$$ of $$9^{i}$$ is one of the digits from 0 to 9 for $$0 ≤ i ≤ n$$, but $$c_n ≠ 0$$. For example, $$163=(201)_9$$ because $$163= 2(9^{2})+0(9^{1})+1(9^{0})$$.
Which of the following is equal to the product of the three integers $$(12)_9, (13)_9$$, and $$(14)_9$$ ?
$$(c_n......c_2 c_1 c_0)_9$$= $$c_n(9^{n})+......c_2(9^{2})+c_1(9^{1})+c_0(9^{0})$$
for some nonnegative integer $$n$$, where the coefficient $$c_i$$ of $$9^{i}$$ is one of the digits from 0 to 9 for $$0 ≤ i ≤ n$$, but $$c_n ≠ 0$$. For example, $$163=(201)_9$$ because $$163= 2(9^{2})+0(9^{1})+1(9^{0})$$.
Which of the following is equal to the product of the three integers $$(12)_9, (13)_9$$, and $$(14)_9$$ ?
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· 相关考点
3.6.2 新定义函数
3.6.2 新定义函数
以上解析由 考满分老师提供。
