Question

15) Area of parallelogram whose sides are
represented by two vectors P and õ is
A) +ē
B)
C) P.
D) PX​

Answer 1

Answer:

Area of the parallelogram is the magnitude of cross product of vectors representing sides.

A=

∣

∣

∣

∣

∣

(2

i

∧

+4

j

∧

−6

k

∧

)X(1

i

∧

+2

k)

∧

∣

∣

∣

∣

∣

=

∣

∣

∣

∣

∣

∣

∣

∣

i

2

1

j

4

0

k

−6

2

∣

∣

∣

∣

∣

∣

∣

∣

=∣8i−10j−4k∣

=13.