What is the formula of Ap
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The general form of an Arithmetic Progression is a, a + d, a + 2d, a + 3d and so on. Thus nth term of an AP series is Tn = a + (n - 1) d, where Tn = nth term and a = first term. Here d = common difference = Tn - Tn-1. The sum of n terms is also equal to the formula where l is the last term.
amitkhokhar:
last term is = l-(n-1)d
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Nth term = a + (n-1)d
Sum up to n term = n(2a+(n-1)d)/2
Where
a = First Term
d = Common difference
Sum up to n term = n(2a+(n-1)d)/2
Where
a = First Term
d = Common difference
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