Mention All the Formulae Used for Solving Problems Related To Airthemetic Progression...
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Formulae related to arithmetic progression are :-
1 common difference
d = añ - a(ñ-1)
2 last term
An= a + (n-1)d
3 sum of n terms
Sn = n/2 ( 2a + (n-1) d ) or n/2 ( a +An )
Hope it helps
1 common difference
d = añ - a(ñ-1)
2 last term
An= a + (n-1)d
3 sum of n terms
Sn = n/2 ( 2a + (n-1) d ) or n/2 ( a +An )
Hope it helps
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