Class 8 / IIT Foundation Plus Maths / Sum Of n Terms Of An Arithmetic Progressions / Theorem On Sum Of n Terms Of An Arithmetic Progressions

Sum of n terms of an Arithmetic Progression

Sum of n terms of an Arithmetic Progression 1.Theorem : Let a be the first term, d be the common difference, n be the number of terms and sn be the sum of first n terms of an Arithmetic progression ,