计算:1、(1+根号2)²(1+根号3)²(1-根号2)²(1-根号3)²;2、根号12÷(根号3-根号2)3、(a-b)÷(根号a-根号b)
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![计算:1、(1+根号2)²(1+根号3)²(1-根号2)²(1-根号3)²;2、根号12÷(根号3-根号2)3、(a-b)÷(根号a-根号b)](/uploads/image/z/2466963-27-3.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A1%E3%80%81%281%2B%E6%A0%B9%E5%8F%B72%29%26%23178%3B%281%2B%E6%A0%B9%E5%8F%B73%29%26%23178%3B%281-%E6%A0%B9%E5%8F%B72%29%26%23178%3B%281-%E6%A0%B9%E5%8F%B73%29%26%23178%3B%EF%BC%9B2%E3%80%81%E6%A0%B9%E5%8F%B712%C3%B7%EF%BC%88%E6%A0%B9%E5%8F%B73-%E6%A0%B9%E5%8F%B72%EF%BC%893%E3%80%81%28a-b%29%C3%B7%28%E6%A0%B9%E5%8F%B7a-%E6%A0%B9%E5%8F%B7b%29)
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计算:1、(1+根号2)²(1+根号3)²(1-根号2)²(1-根号3)²;2、根号12÷(根号3-根号2)3、(a-b)÷(根号a-根号b)
计算:1、(1+根号2)²(1+根号3)²(1-根号2)²(1-根号3)²;2、根号12÷(根号3-根号2)
3、(a-b)÷(根号a-根号b)
计算:1、(1+根号2)²(1+根号3)²(1-根号2)²(1-根号3)²;2、根号12÷(根号3-根号2)3、(a-b)÷(根号a-根号b)
原式=[(1+√2)(1-√2)]^2[(1+√3)(1-√3)]^2
=[1-2]^2[1-3]^2
=4
原式=[√12(√3+√2)]/[(√3+√2)(√3-√2)]
=√12(√3+√2)
=6+2√6
1、
=【(1+√2)(1-√2)】【(1+√2)(1-√2)】【(1+√3)(1-√3)】【(1+√3)(1-√3)】
=(1-2)(1-2)(1-3)(1-3)
=4
2、= 6+2√6
3、=√a+√b