Find the sum of the following arithmetic progressions: (x-y) 2 , (x 2 +y 2 ), (x+y) 2 , … to n terms

Question

Philoid · Accepted Answer

for the given AP the first term a is (x - y)² and common difference d is a difference of the second term and first term, which is

To find: the sum of given AP

Formula: for the sum of AP is given by

Substituting the values in the above formula