Is the following sequence an $A P$ ? If true, find the common difference $d$ and write three more terms.
$0.2, 0.22, 0.222, .0 .2222, . .$

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Solution

$0.2, 0.22, 0.222, 0.2222$
$\Rightarrow$ Difference between second and first term $= 0.22 - 0.2 = 0.02$
$\Rightarrow$ Difference between third and second term $= 0.222 - 0.22 = 0.002$
$\Rightarrow$ Since, difference is not same, it is not an $A . P$

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Is the following sequence an AP? If true, find the common difference d and write three more terms.0.2,0.22,0.222,.0.2222,..

0.2,0.22,0.222,0.2222⇒ Difference between second and first term =0.22−0.2=0.02⇒ Difference between third and second term =0.222−0.22=0.002⇒ Since, difference is not same, it is not an A.P

Is the following sequence an $A P$ ? If true, find the common difference $d$ and write three more terms.
$0.2, 0.22, 0.222, .0 .2222, . .$

$0.2, 0.22, 0.222, 0.2222$
$\Rightarrow$ Difference between second and first term $= 0.22 - 0.2 = 0.02$
$\Rightarrow$ Difference between third and second term $= 0.222 - 0.22 = 0.002$
$\Rightarrow$ Since, difference is not same, it is not an $A . P$