The first term of an arithmetic progression is 18 and the 18th is 60. Determine the common difference of the A.P

asked Aug 25, 2023 4.1k views

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Answer:

42/17

Explanation:

First term, a = 18

T18 = 60

Common difference, d = ?

$T_(18) = 18 + (18 - 1)d \\ 60 = 18 + 17d \\ 17d = 42 \\ d = (42)/(17)$

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