Question

what is the formula of sum of all terms in AP​

Answer 1

Answer:

In this progression, the common difference between each succeeding term and each preceding term is constant. An example of AP is natural numbers, where the common difference is 1.

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Sum of N Terms of AP And Arithmetic Progression.

Sum of n terms in AP n/2[2a + (n – 1)d]

Sum of natural numbers n(n+1)/2

Answer 2

$\huge\underline\mathit\red{Formula}$

$Sn = \frac{n}{2} \times 2a + (n - 1)d$

Where,

Sn = Sum of n terms of AP

a = first term of AP

d = common difference