Calculate the sum of the first 50 terms in the sequence. 18, 21, 24, 27,

asked May 9, 2022 121k views

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Answer:

$sum = (n)/(2) (2a + (n - 1)d) \\ = (50)/(2) ((2 * 18) + (50 - 1) * 3) \\ = 25(36 + 147) \\ = 25 * 183 \\ sum = 4575$

Pranay Dutta answered May 12, 2022

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