Write the first four terms of the sequence whose general term is given.
-$$a _ { n } = ( - 1 ) ^ { n } ( n + 2 )$$
A) $3,4,5,6$
B) $- 3 , - 8 , - 15 , - 24$
C) $- 3,4 , - 5,6$
D) $- 3 , - 4 , - 5 , - 6$

Question

Quizplus · Accepted Answer

The sequence is defined by the formula $a_n = (-1)^n(n + 2)$. For the first four terms, we substitute $n = 1, 2, 3, 4$ into the formula:- For $n = 1$, $a_1 = (-1)^1(1 + 2) = -3$- For $n = 2$, $a_2 = (-1)^2(2 + 2) = 4$- For $n = 3$, $a_3 = (-1)^3(3 + 2) = -5$- For $n = 4$, $a_4 = (-1)^4(4 + 2) = 6$Thus, the first four terms are $-3, 4, -5, 6$.

Write the First Four Terms of the Sequence Whose General an=(−1)n(n+2)a _ { n } = ( - 1 ) ^ { n } ( n + 2 )an​=(−1)n(n+2)

Write the First Four Terms of the Sequence Whose General $a _ { n } = ( - 1 ) ^ { n } ( n + 2 )$