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If the pth and qth terms of an AP be a and b respectively, show that the sum of the first (p+q) terms of the AP is (p+q)/2{a+b+(a-b/p-q)}

If the pth  and qth  terms of an AP be a and b respectively, show that the sum of the first (p+q) terms of the AP is
(p+q)/2{a+b+(a-b/p-q)}
 

Grade:11

1 Answers

Arun Kumar IIT Delhi
askIITians Faculty 256 Points
7 years ago
Hello Student,


Now its obvious.
Substitute the values to get the answer.
Thanks & Regards
Arun Kumar
Btech, IIT Delhi
Askiitians Faculty

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