Question

the first, third and ni th term of an a.p are the first three term of an expotential sequence (g.p) if the seventh term of the linear equation is 14 calculate: the twentieth term of the sequence, the sum of the first twelve terms of the expotential sequence you need net to simplify any expotential term on your answer, find the sum of the first 101th term of the line sequence (A.P)

Answer 1

If the first term of both sequences is a, then
a+2d = ar
a+8d = ar^2
a+6d = 14
Now solve for a,r,d and then the rest is easy