Question

$\underline{\Huge {\red{Question:-}}}$

$\sf In\:a\:A.P(Arithmetic\:progression),three\:terms\;are\:p,q\;and\;r. \\ \sf If\:sum\;of\:p,q\:and\:r\:is\:a,b\:and\:c. \\ \sf Then\:prove\:that ,\\ \sf {\dfrac {a}{p}(q-r)+\dfrac {b}{q}(r-p) + \dfrac{c}{r}(p-q)=0}$

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Answer 1

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