题目内容
计算:(a2-2+a-2)÷(a2-a-2)
答案:
解析:
解析:
| (a2-2+a-2)÷(a2-a-2)
=(a2-2·a1·a-1+a-2)÷(a2-a-2) = = = |
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题目内容
计算:(a2-2+a-2)÷(a2-a-2)| (a2-2+a-2)÷(a2-a-2)
=(a2-2·a1·a-1+a-2)÷(a2-a-2) = = = |