x₁x₂=(a₁+b₁√2)(a₂+b₂√2)怎么整理为(a₁a₂+2b₁b₂)+(a₁b₂+a₂b₁)√2
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 17:13:57
![x₁x₂=(a₁+b₁√2)(a₂+b₂√2)怎么整理为(a₁a₂+2b₁b₂)+(a₁b₂+a₂b₁)√2](/uploads/image/z/7099812-36-2.jpg?t=x%26%238321%3Bx%26%238322%3B%3D%28a%26%238321%3B%2Bb%26%238321%3B%E2%88%9A2%29%28a%26%238322%3B%2Bb%26%238322%3B%E2%88%9A2%29%E6%80%8E%E4%B9%88%E6%95%B4%E7%90%86%E4%B8%BA%EF%BC%88a%26%238321%3Ba%26%238322%3B%2B2b%26%238321%3Bb%26%238322%3B%29%2B%28a%26%238321%3Bb%26%238322%3B%2Ba%26%238322%3Bb%26%238321%3B%29%E2%88%9A2)
x₁x₂=(a₁+b₁√2)(a₂+b₂√2)怎么整理为(a₁a₂+2b₁b₂)+(a₁b₂+a₂b₁)√2
x₁x₂=(a₁+b₁√2)(a₂+b₂√2)怎么整理为
(a₁a₂+2b₁b₂)+(a₁b₂+a₂b₁)√2
x₁x₂=(a₁+b₁√2)(a₂+b₂√2)怎么整理为(a₁a₂+2b₁b₂)+(a₁b₂+a₂b₁)√2
你几年级的啊 就像(a+b)(c+d)=ac+ad+bc+bd 模仿着就可以推出来了 授人以鱼 不如授人以渔