Proszę o pomoc na jutro ! Daje Naj ! Dwa zadania 12 ! Zdj ⬇⬇⬇⬇

7do-11•(7do-4:7)do-1/(7do-3)²=7do-11•(7do4:7do-1)/7do-6=7do-11•7do5/7do-6=7do-6/7do-6=1 (1,3do4•16/2,6³)•10do9/5do9•2do9=(1,3do4•4do4/2,6³)•10do9/(5•2)do9=(5,2do4/2,6³)•10do9/10do9=(2•2,6do4/2,6³)•1=2•2,6do1•1=2•2,6•1=5,4•1=5,4 5do-12•(5-³:5)do-1/(5-²)do4=5do-12•(5do3:5do-1)/5do-8=5do-12•5do4/5do-8=5do-8/5do-8=1 (2do7•5do7/10do7)•1,3do4•81/3,9³=([2•5]do7/10do7)•1,3do4•3do4/3,9³=(10do7/10do7)•(1,3•3)do4/3,9=1•3,9do4/3,9³=1•3,9=3,9