SOLUTION: find the value of x in the sequence 1/2, x, 1/8 if the sequence4 is an arithmetic progression and a geometric progression

Question 757444: find the value of x in the sequence 1/2, x, 1/8 if the sequence4 is an arithmetic progression and a geometric progression
Answer by reviewermath(1029) (Show Source): You can put this solution on YOUR website!
Q:
find the value of x in the sequence 1/2, x, 1/8 if the sequence is an arithmetic progression and a geometric progression
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A:
If the sequence is an arithmetic progression,then
x - 1/2 = 1/8 - x
x + x = 1/8 + 1/2
2x = 5/8
x =
If the sequence is a geometric progression, then
=
=
x = �
= OR

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