AP members

What is the value of x2, x3, x4, x5…of the terms (of arithmetic progression) when x1 = 8 and x6 = 20?

Correct result:

x2 =  10.4
x3 =  12.8
x4 =  15.2
x5 =  17.6

Solution:

x1=8 x6=20  xn=x1+d (n1) x6=x1+5d d=x6x15=2085=125=2.4  x2=x1+d=8+2.4=525=10.4
x3=x2+d=10.4+2.4=645=12.8
x4=x3+d=12.8+2.4=765=15.2
x5=x4+d=15.2+2.4=885=17.6



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