Question

For any two non zero vectors $\vec{a}$ and $\vec{b}$
A. If $|\vec{a}| = |\vec{b}|$then $\vec{a} = \vec{b}$
B. If $\vec{a} = \vec{b}$ then $|\vec{a}| = |\vec{b}|$
C. $\vec{a} . \vec{b}=\vec{b} . \vec{a}$
D. $\vec{a} \times \vec{b}=\vec{b} \times \vec{a}$
E. area of the parallelogram = $\frac{1}{2} |\vec{a} \times \vec{b}|$. where $\vec{a}$ and $\vec{b}$ represent resent the diagonals of the parallelogram.
Choose the correct answer from the options given below:

• A. B, C, E only
• B. A, B, C only
• C. B, C, D only
• D. C, D only

Answer 1

Answer: (A)

B, C, E only

Answer 2

The correct option is (A): B, C, E only