October 2018 2 28 Report

Czy to zadanie jest dobrze nie powinno wyjść r =2 a a1=0

treść to wyznacz ciag arytmetyczny a2=4 a4=6

Prosze o poprawienie jeśli jest żle

a2=a1+r=2

a4=a1+3r=6

a1+r=2 tu chyba razy -1

a1+3r=6

-a1-r=-2

a1+3r=6

-2r=4/-2

r=-2

a1+r=2

a1-2=2

a1=4

an=a1=(n-1)*r

an=4+(n-1)*-2

an=4-2n+2

an=-2n+6


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