1.

If barp is non- · zero vector such that barp. bara= barp. barb = 0 and barp xx barc = bar0 then

Answer»

`[BARABARBBARC]=0`
`baraxx(BARBXXBARC)=BAR0`
`(baraxxbarb)xxbarcbar0`
`(baraxxbarc)xxbarb=bar0`

Answer :C


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