Question
Write time first five terms of the following sequances whose $n^{th}$ terms are:
$a_n = 3n + 2$
$a_n = 3n + 2$
✓
Answer
$a_n = 3n + 2$
Let n = 1, 2, 3, 4, 5, them
First five terms,
$a_1 = 3 \times 1 + 2 = 3 + 2 = 5$
$a_2 = 3 \times 2 + 2 = 6 + 2 = 8$
$a_3 = 3 \times 3 + 2 = 9 + 2 = 11$
$a_4 = 3 \times 4 + 2 = 12 + 2 = 14$
$a_5 = 3 \times 5 + 2 = 15 + 2 = 17.$
Let n = 1, 2, 3, 4, 5, them
First five terms,
$a_1 = 3 \times 1 + 2 = 3 + 2 = 5$
$a_2 = 3 \times 2 + 2 = 6 + 2 = 8$
$a_3 = 3 \times 3 + 2 = 9 + 2 = 11$
$a_4 = 3 \times 4 + 2 = 12 + 2 = 14$
$a_5 = 3 \times 5 + 2 = 15 + 2 = 17.$
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