Question

exercițiul 4 subpunctele c) ; d) ; e) ; f) ; g). dau funda. va rog este urgent

Answer 1

c) [ 2/3 +2/3 : ( 5/12 -1/9) x 11/6]² : (7/3)²=
=[2/3+2/3 : ( 15/36 - 4/36) x 11/6]²: (7/3)²=
=(2/3+2/3 : 11/36 x 11/3)²x 3² /7²=
=(2/3 + 2/3 x 36/11 x 11/3)² x 9/49=
=(2/3+4)²x 9/49=
=(2/3  +12/3)²x 9/49=
=(14/3)² x 9/49=
=14²/3² x9/49=
=196/9 x 9/49=
=196/49=
=4

d) 
5/2+1/2:[(1/+3/2) x 8 - 1/2: 1/4 :1/8] =
=5/2 +1/2 : (5/2 x 8 -1/2x4 x 8)=
=5/2 +1/2 x(5x4 -2x8)
=5/2 +1/2 x(20 -16)=
5/2 +1/2 x 4=
=5/2+2=
=9/2=
=4 intregi si 1/2

e)  3 + 10/3 × [ (5/2 - 13/4 × 4/13) ×4/3 - 1/5]=
=3+10× [(5/2 - 1) ×4/3 -1/5]=
=3+10 x( 3/2 x 4/3 -1/5)=
=3+10/3×( 3/2 ×4/3 -1/5)=
=3+10/3 ×(2- 1/5)=
=3+10/3 × (10/5-1/5)=
=+10/3 ×9/5=
=3+2×3=
=3+6=
=9
f)
3/5 × { (7/1500 +1/200) ×200/31 + 11/7 :[ 5/7×3/8-1/24:(1/4+1/3)]}=
=3/5×{(14/3000 + 15/3000) ×200/31 + 11/7 :(15/56 -  1/24 : 7/12)}=
=3/5×{( 29/3000 ×200/31+11/7: (15/16 - 1/24×12/7)}=
=3/5×{ (19/15×1/31)+11/7: ( 15/56-1/14)}=
=3/5×(19/465+11/7×56/11)
=3/5×(19/465+80)=
=3/5×(19/465+3720/465)=
=3/5 ×3739/465=
=3739/775
=4,82