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Questions  >>  CBSE XI  >>  Math  >>  Sequences and Series
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Q)

If $p^{th},\:q^{th}\:\:and\:\:r^{th}$ terms oa an A.P. are $a,\:b\:and\:c$ respectively, then show that $(q-r)a+(r-p)b+(p-q)c=0$

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