Matematică, întrebare adresată de 2005alex19, 9 ani în urmă

4/19×{1/2+11/15:[1/60+162×(1/270+1/405+1/360)]}=
Urgeeeent!!!!!! Va rog!!!!

Răspunsuri la întrebare

Răspuns de renatemambouko
1
4/19×{1/2+11/15:[1/60+162×(1/270+1/405+1/360)]}=
=
4/19×{1/2+11/15:[1/60+162×(12+8+9)/3240)]}=
=4/19×{1/2+11/15:[1/60+162×29/3240)]}=
=4/19×{1/2+11/15:[1/60+29/20)]}=
=4/19×[1/2+11/15:(1+87)/60]=
=4/19×(1/2+11/15:88/60)=
=4/19×(1/2+11/15 ×60/88)=
=4/19×(1/2+4/8)=
=4/19×(1/2+1/2)=
=4/19×2/2=
=4/19x1=
4/19
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