化简a-b/a+b+a+b/a-b-2a2-2b2/a2+b2
问题描述:
化简a-b/a+b+a+b/a-b-2a2-2b2/a2+b2
(a-b/a+b)+(a+b/a-b)-(2a2-2b2/a2+b2)
答
2(a4+b4)/(a4-b4)
化简a-b/a+b+a+b/a-b-2a2-2b2/a2+b2
(a-b/a+b)+(a+b/a-b)-(2a2-2b2/a2+b2)
2(a4+b4)/(a4-b4)