Question

Sa se rezolve |x-3| + | 4-x | = 1

Answer 1

caz I
x<3⇒3-x+4-x=1
          -2x=-6
            x=3
cazII
3<x<4
x-3+4-x=1⇔1=1⇔x∈[3;4)

cazIII
x≥4
x-3-4+x=1
2x=8
x=4
S=[3;4]