分式,(1)﹙1/x+1+1/x-1﹚×﹙x²-1﹚,其中x=1/2.(2) 1/x-1 + 2x/x+1=2(3) x²/x²-4 + 2/2-x =1 + 1/x+2(4) (x-y + 4xy/x-y) × (x+y - 4xy/x+y)(5)(a-1/a²-4a+4 - a+2/a²-2a) ÷ (4/a

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分式,(1)﹙1/x+1+1/x-1﹚×﹙x²-1﹚,其中x=1/2.(2) 1/x-1 + 2x/x+1=2(3) x²/x²-4 + 2/2-x =1 + 1/x+2(4) (x-y + 4xy/x-y) × (x+y - 4xy/x+y)(5)(a-1/a²-4a+4 - a+2/a²-2a) ÷ (4/a

分式,(1)﹙1/x+1+1/x-1﹚×﹙x²-1﹚,其中x=1/2.(2) 1/x-1 + 2x/x+1=2(3) x²/x²-4 + 2/2-x =1 + 1/x+2(4) (x-y + 4xy/x-y) × (x+y - 4xy/x+y)(5)(a-1/a²-4a+4 - a+2/a²-2a) ÷ (4/a
分式,
(1)﹙1/x+1+1/x-1﹚×﹙x²-1﹚,其中x=1/2.
(2) 1/x-1 + 2x/x+1=2
(3) x²/x²-4 + 2/2-x =1 + 1/x+2
(4) (x-y + 4xy/x-y) × (x+y - 4xy/x+y)
(5)(a-1/a²-4a+4 - a+2/a²-2a) ÷ (4/a - 1)
(6)a-a²/a²-1 ÷ a/a+1 × (a-1/a+1)² 其中a=3
(7)(1+x) × (x-1/x²+x ﹣ 1-x/x³-x)
(8)(1 - 1/a-2) ÷ 3-a/2a-4

分式,(1)﹙1/x+1+1/x-1﹚×﹙x²-1﹚,其中x=1/2.(2) 1/x-1 + 2x/x+1=2(3) x²/x²-4 + 2/2-x =1 + 1/x+2(4) (x-y + 4xy/x-y) × (x+y - 4xy/x+y)(5)(a-1/a²-4a+4 - a+2/a²-2a) ÷ (4/a