Question

interprete oito meios aritmeticos entre 26 e -1

Answer 1

26,__,__,__,__,__,__,__,__.-1
            8 meios aritmeticos
são 10 termos no total tem a pa
a10=a1+9r
a1+9r=a10        26-3=23,23-3=20,20-3=17-3=14-3=11-3=8-3=5-3=2-3=-1
26+9r=-1           A pa(26,23,20,17,14,11,8,5,2,-1)
9r=-1-26
9r=-27
r=-27/9
r=-3