If the vectors (hati+hatj+hatk) and 3 ha...

If the vectors `(hati+hatj+hatk)` and `3 hati` form two sides of a triangle, then area of the triangle is :

A

`sqrt3` unit

B

`2sqrt3` unit

C

`(3)/(sqrt2)` unit

D

`3sqrt2` unit

Verified by Experts

The correct Answer is:

3

Area of triangle `= (1)/(2)| vecA xx vecB|`

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