The condition $( a \cdot b )^2=a^2 b^2$ is satisfied when
- A$a$ is parallel to $b$
- B$a \neq b$
- C$a \cdot b =1$
- D$a \perp b$
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- [JEE MAIN 2021]
Show that the scalar product of two vectors obeys the law of distributive.
Show that the scalar product of two vectors obeys the law of distributive.