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In an A.P. if m^(t h)term is n and the ...

In an A.P. if `m^(t h)`term is n and the `n^(t h)`term is m, where `m!=n`, find the pth term.

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`a_m` = a+ (m-1)d = n ................1
`a_n` = a+(n-1)d = m ..............2
on substracting 1 and 2 ,
⇒ a +(m-1) d - a - (n-1)d = n -m
...
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