Negative difference

Find four arithmetic progression members between 7 and -6.

Correct answer:

a2 =  4.4
a3 =  1.8
a4 =  -0.8
a5 =  -3.4

Step-by-step explanation:

a1=7 a6=6  an = a1 + d (n1) a6 = a1+5d d=5a6a1=5(6)7=513=253=2.6  a2=a1+d=7+513=57 5+513=535+513=535+(13)=522=452=4.4
a3=a2+d=522+513=522+(13)=59=1.8
a4=a3+d=59+513=59+(13)=54=0.8
a5=a4+d=54+513=54+(13)=517=3.4



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