Question

Write the equation of the sum of the first n terms of an AP​

Answer 1

Step-by-step explanation:

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

Answer:

Sn=[n/2 2a+(n-1)d]

Step-by-step explanation:

this is the sum of first n terms of an AP