Question

The diagonals of a parallelogram are given by the vectors (3i+j+2K) and (i-3j+4K) calculate area of parallelogram.​

Answer 1

Answer:

Correct option is

B

5 root 3

Here a=3i+j−2k,b=i−3j+4k

Thus a×b=∣∣∣∣∣∣∣∣i31j1−3k−24∣∣∣∣∣∣∣∣=−2i−14j−10k=−2(i+7j+5k)

Hence area of parallelogram =21∣a×b∣=53

Answer 2

Answer:

hi Ian Abhishek please subscribe my channel name Abhishek RDA