solve If the sequence a1, a2, a3, … an form an A. P.,then a1^2- a2^2+ a3^2- … + a2n – 1^2- a2n^2=
vasu dixit , 9 Years ago
Grade 11
Algebra> solve If the sequence a1, a2, a3, … an fo...
1 Answers
Saurabh Koranglekar
Last Activity: 4 Years ago
Dear student
a^2 – b^2 = (a+b)(a-b)
here a-b = d ie common difference which can be taken common
so the summation of the sequence is
( d)(Sn)
Regards
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