Question

Q. Find the n and 26th terms of the geometric sequence with a5=5/4 and a12=160​

Answer 1

Answer:

Usually I write a geometric series starting with a0 so that the a1 = a0r and an = a0rn-1.

a12/a7 = r7 = 128 so that r = 2

a12 = a0r11 = a0 *211 = 160 => a0 = 5/32.

With that information you should be able to find a26.

Step-by-step explanation:

Hope it's help you

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