Question

Attempt any three questions from following questions each carry 4 mark.
Q.27) Show that magnitude of vector product of two vectors is numerically equal to the area of a
parallelogram formed by two vectors.
Perce Error​

Answer 1

Answer:

Formulaforareaofparallelogram

=base×height

=∣

a

∣.h

h=

∣

∣

∣

b

∣

∣

∣

sinθ

∴Area=∣

a

∣.

∣

∣

∣

b

∣

∣

∣

sinθ

Weknow

∣

∣

∣

a

×

b

∣

∣

∣

=∣

a

∣.

∣

∣

∣

b

∣

∣

∣

sinθ

Henceproved.