Answer :
As we know that sum of An AP, upto first n terms is
Where S = sum of first n terms
a = first term , d = common difference
For first AP a = 1, d = 1
For second AP a = 1 , d = 2
For second AP a = 1 , d = 3
Adding S1 and S3
Hence proved.
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Glimpses of India39 mins
Glimpses of India39 minsTry our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
