The total number of terms in the AP
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For example, the series of natural numbers: 1,2,3,4,5,6,… is an AP, which has a common difference between two successive terms (say 1 and 2) equal to 1 (2 -1).
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Formula Lists.
General Form of APa, a + d, a + 2d, a + 3d, . . .Sum of n terms in APS = n/2[2a + (n − 1) × d]
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ARTHEMATIC PROGRESSION :
definition : the distance between two consecutive numbers are equal then the series is called ARTHEMATIC PROGRESSION
SERIES : a , a + 1d , a + 2d , a + 3d ..............an
NTH TERM : an = a + ( n-1 ) × d
a = 1st term
n = number of terms
d = difference
sum of n term : sn = n / 2 × ( a + an )
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