Question
Write the first three terms of the G.P. whose first term and the common ratio are given below
a = 6, r = 3
a = 6, r = 3
✓
Answer
$t_n=a r^{n-1}$
$t_1=a r^{1-1}=a r^0=a=6$
$t_2=a r^{2-1}=a r^1=6 \times 3=18$
$t_3=a r^{3-1}=a r^2=6 \times 3^2=54$
$\therefore \text { The } 3 \text { terms are } 6,18,54, \ldots$
$t_1=a r^{1-1}=a r^0=a=6$
$t_2=a r^{2-1}=a r^1=6 \times 3=18$
$t_3=a r^{3-1}=a r^2=6 \times 3^2=54$
$\therefore \text { The } 3 \text { terms are } 6,18,54, \ldots$
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