Răspunsuri

2014-07-31T12:17:08+03:00
X∈ N
1)x=1 => (2x+3)/12=  (2*1+3)/12=  (2+3)/12= 5/12

2)x=2  =>(2x+3)/12=  (2*2+3)/12=  (4+2)/12= 7/12

3)x=3  => (2x+3)/12=  (2*3+3)/12=  (6+3)/12=  9/12

4)x=4  => (2x+3)/12=  (2*4+3)/12=  (8+3)/12=  11/12

x={1,2,3,4}


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