I need help with all three questions please. I am just Stuck.

, , .

Step-by-step explanation:

The value of is the first value of the geometric series, that is, .

If the series represents a geometric sequence, then must be constant for every consecutive pair of elements, that is:

Since , .

The geometric sequence can be represented by the following formula:

, for

The 12th element of the geometric sequence is: (, , )

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