Find the first four terms of the sequence $a _ { n } = n - 2$
A) $a _ { 1 } = - 1$, $a _ { 2 } = 0$, $a _ { 3 } = 1$, $a _ { 4 } = 2$
B) $a _ { 1 } = 0$, $a _ { 2 } = 1$, $a = 2$, $a _ { 4 } = 3$
C) $a _ { 1 } = - 2$, $a _ { 2 } = - 3$, $a _ { 3 } = - 4$, $a _ { 4 } = - 5$
D) $a _ { 1 } = 1$, $a _ { 2 } = 2$, $a = 3$, $a _ { 4 } = 4$
E) $a _ { 1 } = 2$, $a _ { 2 } = 3$, $a _ {3 } = 4$, $a _ { 4 } = 5$

Question

Quizplus · Accepted Answer

To find the first four terms of the sequence, we need to substitute n = 1, 2, 3, and 4 into the formula given. Thus, we get:
$$a_1 = 1-2 = -1$$
$$a_2 = 2-2 = 0$$
$$a_3 = 3-2 = 1$$
$$a_4 = 4-2 = 2$$
Therefore, the first four terms of the sequence are -1, 0, 1, and 2, which is option A.

Find the First Four Terms of the Sequence an=n−2a _ { n } = n - 2an​=n−2

Find the First Four Terms of the Sequence $a _ { n } = n - 2$