Where all do we use this formula : an=Sn-Sn-1 .
Please give some examples........
Please answer fast .......
Dear Student,
We will apply this formula, when the sum of first n terms is given in the question and we have to calculate :
nth term, first term , common difference, AP.
Refer the following link :
https://www.meritnation.com/ask-answer/question/the-sum-of-first-n-terms-of-an-a-p-is-given-by-sn-4n-s/arithmetic-progressions/1459193
Hope this would have clear your doubt. Do let us know in case of any further concerns.
We will apply this formula, when the sum of first n terms is given in the question and we have to calculate :
nth term, first term , common difference, AP.
Refer the following link :
https://www.meritnation.com/ask-answer/question/the-sum-of-first-n-terms-of-an-a-p-is-given-by-sn-4n-s/arithmetic-progressions/1459193
Hope this would have clear your doubt. Do let us know in case of any further concerns.