解下列不等式组(要过程)(1)X-1<3 (2)X-1>3 (3)X-1>3 (4)X-1>3 X+1<3 X+1>3 X+1>3 X+1<3(5)2X-1>0 (6) -3X-1>3 (7
解下列不等式组(要过程)(1)X-1<3 (2)X-1>3 (3)X-1>3 (4)X-1>3 X+1<3 X+1>3 X+1>3 X+1<3(5)2X-1>0 (6) -3X-1>3 (7
解下列不等式组(要过程)
(1)X-1<3 (2)X-1>3 (3)X-1>3 (4)X-1>3
X+1<3 X+1>3 X+1>3 X+1<3
(5)2X-1>0 (6) -3X-1>3 (7)3(X-1)+13>5X-2(5-X)
X+1<3 2x+1>3 5-(2X+1)<3-6X
(8)X-3(X-2)≥4 (9)X-3(X-2)≥4 (10)2/1(X+4)<2
3/1+2X >x-1 5/2X-1 >2/X+1 2/X+2>3/X+3
解下列不等式组(要过程)(1)X-1<3 (2)X-1>3 (3)X-1>3 (4)X-1>3 X+1<3 X+1>3 X+1>3 X+1<3(5)2X-1>0 (6) -3X-1>3 (7
(1)1式+2式=2X<6 X<3
(2)1式+2式=2X>6 X>3
(3)和第2题一样 是不是打错了
(4)无解
(5)1式得X>0.5 2式得X<2 结集为0.5<X<2
(6)1式得X>-4/3 2式得X>1 解集为X>1
(7)1式得X<5 2式得X<-1/4 解集为X<-1/4
(8)1式得1≥X 2式得X>-4/3 解集为X≥1
(9)1式得1≥X 2式得-20>X 解集为X<-20
(10)1式得X<0 2式得X>6 无解
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