Write the first n terms of the given arithmetic sequence (the value of n is indicated in the question).
-$$\text { a5 } = 1 , \mathrm {~d} = - 5 , \mathrm { n } = 5$$
A) $0,21,16,11,6$
B) $21,16,11,6,1$
C) $- 21 , - 16 , - 11 , - 6 , - 1$
D) $25,19,13,7,1$

Question

Quizplus · Accepted Answer

Given $a_5 = 1$ and $d = -5$, we can find the first term $a_1$ using the formula for the nth term of an arithmetic sequence: $a_n = a_1 + (n - 1)d$. Substituting $n = 5$, $a_5 = 1$, and $d = -5$, we get $1 = a_1 + 4(-5)$, which simplifies to $a_1 = 21$. The first five terms, decreasing by 5 each time, are $21, 16, 11, 6, 1$.

Write the First N Terms of the Given Arithmetic Sequence a5 =1, d=−5,n=5\text { a5 } = 1 , \mathrm {~d} = - 5 , \mathrm { n } = 5 a5 =1, d=−5,n=5

Write the First N Terms of the Given Arithmetic Sequence $\text { a5 } = 1 , \mathrm {~d} = - 5 , \mathrm { n } = 5$