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प्रश्न
Write the correct number in the given boxes from the following A. P.
3, 6, 9, 12,...
Here t1 = 
t2 = 
, t3 = 
, t4 = 
,
t2 – t1 = 
, t3 – t2 = 
∴ d = 
उत्तर
3, 6, 9, 12,...
Here t1 = 
, t2 = 
, t3 = 
, t4 = 
,
t2 – t1 = 
, t3 – t2 = 
∴ d =
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