Find the area of the parallelogram whose sides are represented by `2hati + 4hatj - 6hatk and hati +2hatk.`

Answer

A, C, D

Explanation

`AxxB=|(hati,hatj, hatk),(2,4,-6),(1,0,2)|`
`=hati(8-0) +hatj(-6 -4) + hatk(0-4)`
`=8hati - 10hatj - 6hatk`
Area of parallelogram = |A xx B|
`=sqrt((8)^2+(10)^2+(4))^2`
`=13.4 units`