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In an A.P., if p^(t h)term is 1/qand q^...

In an A.P., if `p^(t h)`term is `1/q`and `q^(t h)`term is `1/p`, prove that the sum of first pq terms is `1/2(p q+1),`where `p!=q`.

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The correct Answer is:
`=1/2(pq+1)`
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MODERN PUBLICATION-SEQUENCES AND SERIES-NCERT FILE QUESTIONS FROM NCERT BOOK (EXERCISE 9.2 )
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