if the Pth term of an AP is Q and its Qth term is P then show that its (P+Q)th term is zero/

https://www.meritnation.com/ask-answer/question/q-and-qth-term-is-p-then-its-p-q-th-term-is-a-0-b-p-q/arithmetic-progressions/1429444

Follow solution 1 of the above given link.

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