(3-√2)²怎么算,
问题描述:
(3-√2)²怎么算,
答
=3²-2x3x√2+√2²
=9-6√2+2
=11-6√2 请采纳
(3-√2)²怎么算,
=3²-2x3x√2+√2²
=9-6√2+2
=11-6√2 请采纳