1.

The vector area of the Delta ABC whose vertices are a,b,c is

Answer»

`{(a xx B) + (b xx c) + (c xx a)}`
`(1)/(2) {(a xx b) + (b xx c) + (c xx a)}`
`2 {(a xx b) - (b xx c) + (c xx a)}`
NONE of these

Answer :B


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