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If vecAxxvecB=vecC, then choose the inco...

If `vecAxxvecB=vecC`, then choose the incorrect option : [`vecA and vecB` are non zero vectors]

A

`vecC` is perpendicular to `(vecA+vecB)`

B

`vecC` is perpendicular to `(vecA-vecB)`

C

`veC` is perpendicular to `(vecAxxvecB)`

D

`vecC` isperpendicular to `vecA` and `vecB`

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze the statement given and the options provided. The question states that if \(\vec{A} \times \vec{B} = \vec{C}\), we need to choose the incorrect option among the following statements: 1. \(\vec{A}\) and \(\vec{B}\) are non-zero vectors. 2. \(\vec{A} + \vec{B}\) is in the same plane as \(\vec{C}\). 3. \(\vec{C}\) is perpendicular to both \(\vec{A}\) and \(\vec{B}\). 4. \(\vec{C}\) has a zero degree angle with itself. ### Step-by-Step Solution: 1. **Understanding the Cross Product**: The cross product \(\vec{A} \times \vec{B}\) produces a vector \(\vec{C}\) that is perpendicular to both \(\vec{A}\) and \(\vec{B}\). This means that \(\vec{C}\) is not in the same plane as \(\vec{A}\) and \(\vec{B}\) but rather points out of that plane. 2. **Analyzing the Options**: - **Option 1**: \(\vec{A}\) and \(\vec{B}\) are non-zero vectors. - This statement is true because for the cross product to be defined and non-zero, both vectors must be non-zero. - **Option 2**: \(\vec{A} + \vec{B}\) is in the same plane as \(\vec{C}\). - This statement is incorrect. The vector \(\vec{C}\) (result of \(\vec{A} \times \vec{B}\)) is perpendicular to the plane formed by \(\vec{A}\) and \(\vec{B}\). Thus, \(\vec{A} + \vec{B}\) lies in the plane of \(\vec{A}\) and \(\vec{B}\) and cannot be in the same plane as \(\vec{C}\). - **Option 3**: \(\vec{C}\) is perpendicular to both \(\vec{A}\) and \(\vec{B}\). - This statement is true as per the properties of the cross product. - **Option 4**: \(\vec{C}\) has a zero degree angle with itself. - This statement is true because any vector has a zero degree angle with itself. 3. **Conclusion**: The incorrect option among the given statements is **Option 2**. ### Final Answer: The incorrect option is **Option 2**: \(\vec{A} + \vec{B}\) is in the same plane as \(\vec{C}\).

To solve the question, we need to analyze the statement given and the options provided. The question states that if \(\vec{A} \times \vec{B} = \vec{C}\), we need to choose the incorrect option among the following statements: 1. \(\vec{A}\) and \(\vec{B}\) are non-zero vectors. 2. \(\vec{A} + \vec{B}\) is in the same plane as \(\vec{C}\). 3. \(\vec{C}\) is perpendicular to both \(\vec{A}\) and \(\vec{B}\). 4. \(\vec{C}\) has a zero degree angle with itself. ### Step-by-Step Solution: ...
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