1/(a-b)-1/(a+b)-(2b)/(a^2+b^2)-(4b^3)/(a^4+b^4)+(8b^7)/(b^8-
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/08/08 12:02:04
1/(a-b)-1/(a+b)-(2b)/(a^2+b^2)-(4b^3)/(a^4+b^4)+(8b^7)/(b^8-a^8)
快
快
![1/(a-b)-1/(a+b)-(2b)/(a^2+b^2)-(4b^3)/(a^4+b^4)+(8b^7)/(b^8-](/uploads/image/z/17938030-22-0.jpg?t=1%2F%28a-b%29-1%2F%28a%2Bb%29-%282b%29%2F%28a%5E2%2Bb%5E2%29-%284b%5E3%29%2F%28a%5E4%2Bb%5E4%29%2B%288b%5E7%29%2F%28b%5E8-)
1/(a-b)-1/(a+b)=2a/(a^2-b^2)
后面应该会吧
后面应该会吧
A=B+B+B+B+B+B+B+B+B+B+B+B+B+B+B A-B×3=C C+2×7+2=1
计算:((a+b)(a-b)-(a-b)^2+2b(a-b))/4(a-b)
(a+2b)(2a+4b)(3a+6b)(4a+8b)
求行列式D=a b b b的第四行元素的代数余子式之和 b a b b b b a b 1 2 3 4
1.(a-b)^2(b-a)^3(a-b)^-4
(3a-6b)/(a+b) - (5a-6b)/(a-b) - (4a-5b)/(a+b) - (7a-8b)/(a-b
(3a-6b/a+b)-(5a-6b/a-b)-(4a-5b/a+b)-(7a-8b/b-a)
计算a^2-b^2/a+b-4a(a-b)+b^2/2a-b
请化简以下两道题(a+2b)(a-2b)-1/2b(a-8b)(a+b)²+(a-b)(2a+b)-3a
(2a+b)(2a-b)+3(2a-b)²+(-3(4a-3b)+3a-b)(2a-b)其中a=-1
因式分解:a×a-4b×b-2a+4b
2(2a+b)^2-3(2a+b)+8(2a+b)^2-6(2a+b),其中a=-3/4,b=1/2