Răspuns:
1.
⁶⁾4/3-³⁾5/6-⁹⁾3/2+²⁾4/9=
24/18-15/18-27/18+8/18=
(-10/18)⁽²=
-5/9
2.
[(24-2)/90-¹⁰⁾5/9]:[⁹⁾4/10-8/90]=
(22/90-50/90):(36/90-8/90)=
-28/90:28/90=
-28/90×90/28=
-1
3.
6/11×[3/4-5/2×(⁵⁾1/3-³⁾2/5)]=
6/11×[3/4-5/2×(-1/15)]=
6/11×(³⁾3/4+²⁾1/6)=
6/11×11/12=
1/2
4.
4/3×{1/8-[1/3-(⁴⁾2/3-³⁾5/4)×6/7]×3/10}=
4/3×[1/8-(1/3-(-7/12)×6/7)×3/10]=
4/3×[1/8-(²⁾1/3+³⁾1/2)×3/10]=
4/3×(1/8-5/6×3/10)=
4/3×(1/8-²⁾1/4)=
4/3×(-1/8)=
-1/6
5.
=(-2/5)⁵⁺³⁻⁷
=(-2/5)¹
=(-2/5)
