1.

Let bara = 2bari -barj+bark , barb=bari+2barj-bark , barc=bari+barj-2bark be the three vectors. A vector in the plane of barb, barc "and whose projection on " bara " of magnitude " sqrt(2/3) is

Answer»

`2bari+3barj-3bark`
`2bari+3barj+3bark`
`2bari+barj-5bark`
`bari+barj-bark`

ANSWER :A


Discussion

No Comment Found