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14-04-2022
Mathematics

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

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jasongggg jasongggg

14-04-2022

Answer:

42/17

Step-by-step explanation:

First term, a = 18

T18 = 60

Common difference, d = ?

[tex]T_{18} = 18 + (18 - 1)d \\ 60 = 18 + 17d \\ 17d = 42 \\ d = \frac{42}{17} [/tex]

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