Question

if A=2i+ 3j-k and B= 2i+3j -k may be two sides of a parallelgram then area of parallelogram will be..???? plz with solution​

Answer 1

Heya!!

Area of //gm is given by. |A × B |

A × B =

| i j k |

| 2 3 -1|

| 2 3 -1|

=>

A × B = 0i -0j + 0k

=>

| A × B | = 0

So, Area of //gm is zero sq units...

And it must be Becoz A and B are two similar vector .

Answer 2

Please see the attachment