2 The sum of an infinite geometric sequence is seven times the value of its first term. a Find the common ratio of the sequence. b Find the least. number of terms of the sequence that must be added in order for the sum to exceed half the value of the infinite sum.

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A: We have to find the nth term of the given sequence.

Q: Find the infinite geometric sum if a1=-3, r=1\2

A:

Q: The first four terms of an arithmetic sequence are p, 9, 3p - q, and 3p + q. What is the 2010th term…

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A: I am attaching image so that you understand each and every step.

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A: