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Write the Angle Between the Vectors → a × → B and → B × → a . - Mathematics

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Question

Write the angle between the vectors  \[\vec{a} \times \vec{b}\]  and  \[\vec{b} \times \vec{a}\] .

 

 

Short/Brief Note
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Solution

\[\vec{b} \times \vec{a}\] \[- \vec{a} \times \vec{b}\]
So,  
\[\vec{a} \times \vec{b}\] and  \[\vec{b} \times \vec{a}\]  are vectors of same magnitude but opposite in directions. 
Thus, the angle between the vectors  \[\vec{a} \times \vec{b}\]  and  \[\vec{b} \times \vec{a}\]  is 180º.
 
 

 

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Chapter 25: Vector or Cross Product - very short answers [Page 34]

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RD Sharma Mathematics [English] Class 12
Chapter 25 Vector or Cross Product
very short answers | Q 31 | Page 34

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