2. Let 4 3z + 1+ (3z + 3z + i + ... z – i be the sum of the first n terms of a geometric sequence. z – i z – i z – i a. Identify the first term and the common rationr. b. Find all the complex numbers (z) in standard and polar forms for which the sum of the first 4 terms S

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A: Introduction :

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A: I have explained everything with in the solution. Please go through that.

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Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.