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If the vectors hati-hatj, hatj+hatk and ...

If the vectors `hati-hatj, hatj+hatk and veca` form a triangle then `veca` may be (A) `-hati-hatk` (B) `hati-2hatj-hatk` (C) `2hati+hatj+hatjk` (D) hati+hatk`

A

`-hati-hatk`

B

`hati-2hatj-hatk`

C

`2hatj+hatj+hatk`

D

`hati+hatk`

Text Solution

Verified by Experts

The correct Answer is:
A, B, D
`a=[+-(hati-hatj)+-(hatj+hatk)]`
`=+-(hati+hatk),+-(hati-2hatj-hatk)`
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