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Mathematics
Problem
A sequence is defined by the formula
u
1
=
4
27
u_1 = \frac{4}{27}
u
1
=
27
4
,
u
n
+
1
=
3
×
u
n
u_{n+1} = 3 \times u_n
u
n
+
1
=
3
×
u
n
,
n
≥
1
n \ge 1
n
≥
1
. a. a Show that the sequence is geometric and find the common ratio. b. b Find the 10th term of the sequence. c. c How many terms of the sequence are *not* integers?
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