【分式的加减】几道计算题
(1)(1/x)-(1/x+1)=(2)(x/x-2)-(8/x²-4)=(3)(x/x+1)-(1/x-1)-(2/x²-1)=(4)(1/x+1/...
(1)(1 / x)-( 1 / x+1)=
(2)(x / x-2)- (8 / x ² -4)=
(3)(x / x+1)- (1 / x-1)- (2 / x ² -1)=
(4)(1/x+1/y)² -(1/x-1/y)² =
(5)(x-1 / x ² -3x+2)- (x+2 / x ² +3x+2)=
(6)【(x ² -4 / x ² -x-6 )- (x +2 / x-3)】÷ (4/x-3)= 展开
(2)(x / x-2)- (8 / x ² -4)=
(3)(x / x+1)- (1 / x-1)- (2 / x ² -1)=
(4)(1/x+1/y)² -(1/x-1/y)² =
(5)(x-1 / x ² -3x+2)- (x+2 / x ² +3x+2)=
(6)【(x ² -4 / x ² -x-6 )- (x +2 / x-3)】÷ (4/x-3)= 展开
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