Which of the following are APs ? If they form an AP, find the comm | Filo
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Arithmetic Progressions

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Which of the following are APs ? If they form an AP, find the common difference and write three more terms.
(i)
(ii)
(iii)
(iv)
(v)
(vi)
(vii)
(viii)
(ix) 
(x) 
(xi) 
(xii) 
(xiii) 
(xiv) 
(xv) 

Solution: are said to be in AP if the common difference between any two consecutive number of the series is same ie

It is not in AP, as the difference between consecutive terms is different.

It is in AP with common difference


Next three terms are

It is in AP with common difference ,and  
Next three terms are 


It is in AP with common difference , and 
Next three terms are 


It is in AP with common difference , and
Next three terms are 


It is not in AP since

It is in AP with common difference and
Next three terms are 


It is in AP, with common difference , therefore next three terms will also be same as previous ones, i.e.,

It is not in AP since

It is in AP with common difference and first term is
Next three terms are 


It is not in AP, as the difference is not constant.

It is in AP with common difference and
Next three terms are 


It is not in AP as difference is not constant.

It is not in AP as difference is not constant.

It is in AP with common difference and ,
Next three terms are 

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