Find the 18th term as well as the sum of the 1st twenty three terms of each of thefollowing arithmetic sequences: a) 4; 7; 10; …………….b)

4 answers
Question:

Find the 18th term as well as the sum of the 1st twenty three terms of each of the following arithmetic sequences:
a) 4; 7; 10; …………….
b) -15; -8; -1; …………

Answers

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Step-by-step explanation:

is it geometric progression or arthmetic progression

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step-by-step explanation:

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