If [bar(a)bar(b)bar(c)]!=0andbar(p)=(bar...

If `[bar(a)bar(b)bar(c)]!=0andbar(p)=(bar(b)xxbar(c))/([bar(a)bar(b)bar(c)]),bar(q)=(bar(c)xxbar(a))/([bar(a)bar(b)bar(c)]),bar(r)=(bar(a)xxbar(b))/([bar(a)bar(b)bar(c)])`, then `bar(a)bar(p)+bar(b)bar(q)+bar(c)*bar(r)` is equal to

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If `[bar(a)bar(b)bar(c)]!=0andbar(p)=(bar(b)xxbar(c))/([bar(a)bar(b)bar(c)]),bar(q)=(bar(c)xxbar(a))/([bar(a)bar(b)bar(c)]),bar(r)=(bar(a)xxbar(b))/([bar(a)bar(b)bar(c)])`, then `bar(a)*bar(p)+bar(b)*bar(q)+bar(c)*bar(r)` is equal to