(1+根号2)²(1+根号3)²(1-根号2)²(1-根号3)²
=[(1+√2)(1-2)]²×[(1+√3)(1-√3)]²
=(1-2)²×(1-3)²
=1×4
=4;
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(1+根号2)²(1+根号3)²(1-根号2)²(1-根号3)²
=[(1+√2)(1-2)]²×[(1+√3)(1-√3)]²
=(1-2)²×(1-3)²
=1×4
=4;
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,