The 1st and 2nd terms of an exponential sequence are respectively the 1st and 3rd terms of a linear sequence. The 4th term of the linear sequence is 10 and the sum of it’s first five terms is 60.
(a) Find the first five terms of the linear sequence and sum of the 1st n terms.
(b) Find the sum of the 1st n terms of the exponential sequence
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