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a/p (q-r) + b/q (r-p) + c/r (p-q)=0
aq-ar/p + br-bp/q + cp-cq/r =0
aq-ar/a + br-bp/b +cp-cq/c =0 ( given sum of p, q, r = a, b,c)
a(q-r)/a + b (r-p)/b + c (p-q)/c =0
q-r + r-p + p-q = 0
0=0 (HENCE PROVED)
HOPE IT HELPS ......
aq-ar/p + br-bp/q + cp-cq/r =0
aq-ar/a + br-bp/b +cp-cq/c =0 ( given sum of p, q, r = a, b,c)
a(q-r)/a + b (r-p)/b + c (p-q)/c =0
q-r + r-p + p-q = 0
0=0 (HENCE PROVED)
HOPE IT HELPS ......
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