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Arithmetic Progressions — Maths STD 10 — Question

Gujarat BoardEnglish MediumSTD 10MathsArithmetic Progressions3 Marks
Question
Write time first five terms of the following sequances whose $n^{th}$ terms are:
$a_n= 3n + 2$
✓

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$

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