1.

Ifa,b,c arep^(th),q^(th),r^(th) " terms of an H.P and" baru=(q-r)bari+(r-p)barj+(p-q)bark, barv=bari/a+barj/b+bark/c, then

Answer»

`BARU,BARV` are othoganal VECTORS
`baru,barv` are PARALLEL
can not be determined
none of these

Answer :A


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