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Find the 11th term of the AP: -3/4, -1/4, 1/4, 3/4, ...

Class 10nth Term of an APAlgebra — Sequences

A17/4
B19/4
C15/4
D23/4

Step-by-Step Solution

d = - 1/4 - (- 3/4) = 1/2. a_{11} = - 3/4 + 10 * (1/2) = - 3/4 + 5 = 17/4

. Using 11

d

gives 19/4, using 9

d

gives 15/4, and dropping the minus sign on the first term gives 23/4.

Answer: A) 17/4

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