1. Consider the sequence: 12, 19, 26, 33, ..., 187 a) Determine the number of terms in each arithmetic sequence. b) Find the sum of the arithmetic series of the above sequence

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Q: Find the missing term of each arithmic sequence. 14,_,28 98,_,66 65,_,-60

A: This is question of algebra  here arithmetic sequence is  given further calculation is given below

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A: Solve by formula

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A: Topic:- algebra

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Q: 2.) Write the general formula for un for the arithmetic sequence 12, 4, –4, –12, ...

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Q: Express as a product. 1+ sin a

A: 1+sin(α)=(cos(α/2)+sin(α/2))(cos(α/2)+sin(α/2))Explanation:

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