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If the pth term of an A.P. is q and the qth term isp, then find its rth term. |
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Answer» Correct Answer - p+q-r a+(p-1)d=q and a+(q-1)d=p `rArr(p-q)d=q-p` `rArr d=-1` `T_(r)=a+(r-1)d=a+(p-1)d+(r-p)d` `=q-(r-p)=p+q-r` |
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