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Frusu95
a fost răspuns

1)Efectuați:
a. ([tex]-2\frac{1}{2} [/tex]):(-2,5)-[-3+([tex] -\frac{1}{14} [/tex]):([tex] -\frac{5}{7} [/tex])]:0,01=
b. {[[tex] \frac{5}{6} [/tex]×([tex] \frac{2}{3} [/tex] - [tex] \frac{4}{5} [/tex]×[tex] \frac{10}{27} [/tex])×[tex] \frac{25}{18} [/tex]][tex] -4\frac{2}{3} [/tex]}:([tex] -1\frac{13}{24} [/tex])=

Răspuns :

a. (-5supra2):(-25supra10)-[-3-1supra14:(-5supra7)]:1supra100=
=(-5supra2):(-5supra2)-[-3-1supra14X-7supra5]X100=
=1-[-3+1supra10]X100=
=1-(-30+1)supra10X100=
=1-(-29)X10=
=1-(-290)=
=1+290=
=291

b.{[5supra6X(2supra3-8supra27)X25supra18]-14supra3}:(-37supra24)=
={[5supra6X((18-8)supra27))X25supra18]-14supra3}X(-24supra37)=
={[5supra6X10supra27X25supra18]-14supra3}X(-24supra37)=
=[1250supra2916-13608supra2916]X(-24supra37)=
=(-12358supra2916)X(-24supra37)=
=12358supra2916X24supra37=
=664supra243

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