1) Г -3;
d=(a2-a1) = -5- (-2) = -3
2) Б 15;
d=(a3-a1)2 =(6-(-3))/2=4.5
a4=a3+d=6+4.5=10.5
a5=10.5+4.5=15
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Какой ты клас?
1) Г -3;
d=(a2-a1) = -5- (-2) = -3
2) Б 15;
d=(a3-a1)2 =(6-(-3))/2=4.5
a4=a3+d=6+4.5=10.5
a5=10.5+4.5=15