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Let veca=2hati+hatj+hatk, vecb=hati+2hat...

Let `veca=2hati+hatj+hatk, vecb=hati+2hatj-hatk and vecc=hati+hatj-2hatk` be three vectors . A vector in the plane of `vecb and vecc` whose projection on `veca` is of magnitude `sqrt((2/3))`is (A) `2hati+3hatj+3hatk` (B) `2hati+3hatj-3hatk` (C) `-2hati-hatj+5hatk` (D) `2hati+hatj+5hatk`

A

`2hati+3hatj-3vec(b)`

B

`2hati+3hatj+3hatk`

C

`-2hati-hatj+5hatk`

D

`2hati+hatj+5hatk`

Text Solution

Verified by Experts

The correct Answer is:
A, C
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