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If in an A.P., the pth term is q\ a n d\...

If in an A.P., the pth term is `q\ a n d\ (p+q)^(t h)` term is zero then the `q^(t h)` term is
a.`-p` b. `p` c. `p+q` d. `p-q`

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`a+(p−1)d=q ........(1)`
Also,
`a+(p+q−1)d=0`
`=>a+(p−1)d+qd=0`
...
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