[tex]1.M_{32}=[32\cdot1;32\cdot2;32\cdot3; 32\cdot4;32\cdot5]\\ \\ M_{32}=[32,64,96, 128, 160][/tex]
2. cmmdc(714; 208)=?
cmmmc(714;208)=?
714 =2×3×7×17
208=2²×2²×13
cmmdc(714; 208)=2
cmmmc(714; 208)=2²×2²×3×7×13×17=74256
3.
A={xIx∈N, 36<x<48}⇒
A={37,38,39,40,41,42,43,44,45,46,47,48}
B ={ xIx∈N, 32<x<sau egal cu42}⇒
B={34,36,38,40,42}
A∪B={37,38,39,40,41,42,43,44,45,46,47,48}
A∩B={34,36,38,40,42}
A\B={37,39,41,43,44,45,46,47,48}
4.
11+3×[2+3(2×3-5)]-14=
11+3×[2+3(6-5)]-14=
11+3×[2+3×1]-14=
11+3×5-14=
11+15-14=
=26-14
=12
