Question

show that the magnitude of a vector is equal to the square root of the scalar product of the vector with itself

Answer 1

Answer

Square of a vector A is defined by dot product of the vector with itself. Thus,

A^2=A.A

Obviously A^2 is scalar quantity. From this we can find the magnitude of A.

|A|=sqrt[A.A]

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Answer 2

Answer:

Explanation:

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