InterviewSolution
Saved Bookmarks
| 1. |
Determine the area of parallelogram whose adjacent sides are the vector hati+hatj, -hati+2hatj |
|
Answer» SOLUTION :Let `veca = hati+hatj, vecb = -hati+2hatj` Then `vecaxxvecb = (hati+hatj)XX(-hati+2hatj)` =`-hatixxhati+2hatixxhatj-hatjxxhati+2hatixxhatj` `2hatk+hatk = 3hatk` AREA of the PARALLELOGRAM =`|vecaxxveca| = |3hatk|` = 3 square units. |
|