Arithmetic Progression Exercise in Khmer
| General Form of AP | a, a + d, a + 2d, a + 3d, . . . |
| Nth term of AP | an = a + (n – 1) × d |
| Sum of n terms in AP | S = n/2[2a + (n − 1) × d] |
| Sum of all terms in a finite AP with the last term as ‘l’ | n/2(a + l) |
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