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a)[tex]( \frac{5}{12} ) :( - \frac{7}{18} + \frac{11}{36} ) * \frac{8}{0,(3)} [/tex]
b)
[tex][( - \frac{1}{2} ): 10 ^{-1} +0,04:10 ^{-2} ] ^{32} :[-0,0(3)] ^{2} [/tex]
c) [tex][( \frac{3}{5} -1,5)* 1,(6) +( 0,1(6)+2 \frac{4}{5} )]: 0,(074)[/tex]
d) [tex](-0,2) ^{-1} * 10 ^{-2} + 0,125:10 ^{-1} -0,1(6)*3,6[/tex]
Dar va rog ,ajutati-ma .. le.am pus asa pe toate pentru ca nu am puncte .. va rogggggggg


Răspuns :

a)  (5/12-7/24):_-7/18+11/36)*8*9/3=
=(10/24-7/24):(-14/36+11/36)*24=
=3/24:3/36*24=
=3*36/3=36

b)[(- 1/2: 10^-1 +0,04: 10^-2 ] ^32 :[-0,0(3)]^2 =
=[(- 1/2 *10 +4/100*10^2 ] ^{32} :[- 3/90 ]^2 =
=(- 5+4) ^32 *[- 90/3 ]^{2} =
=(- 30)^{2} =900

c)[(3/25-1,5)*1,(6)+(0,1(6)+2 4/5)]:0,(074)=
=[(3/25-15/10)*15/9+(15/90+14/5)]:74/999=
=[(6/50-75/50)*15/9+(1/6+14/5)]:74/999=
=[-69/50*5/3+(5/50+84/30)]:74/999=
=(-69/10*1/3+89/30):74/999=
=(-69/30+89/30)*999/74=
=20/30*999/74=2/3*999/74=333/37= 9

d) (-0.2)^-1*10^-2+0.125:10^-1-0.1(6)*3.6=
=-10/2*1/100+125/1000*10-15/90*36/10=
=- 5/100+125/100-6/10=
= 120/100- 6/10=
=12/10-6/10= 6/10 =3/5