(a√a+b√b)/(a+b-√ab)+(√a+2)/(a-2√a)除以√a/(a-4)
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(a√a+b√b)/(a+b-√ab)+(√a+2)/(a-2√a)除以√a/(a-4)(a√a+b√b)/(a+b-√ab)+(√a+2)/(a-2√a)除以√a/(a-4)(a√a+b√b)/(a
(a√a+b√b)/(a+b-√ab)+(√a+2)/(a-2√a)除以√a/(a-4)
(a√a+b√b)/(a+b-√ab)+(√a+2)/(a-2√a)除以√a/(a-4)
(a√a+b√b)/(a+b-√ab)+(√a+2)/(a-2√a)除以√a/(a-4)
=(√a+√b)(a-√ab+b)/(a-√ab+b)+(√a+2)/√a(√a-2)×(√a+2)(√a-2)/√a
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