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Question

# Assertion: →A×→B is perpendicular to both →A+→B as well as →A−→B. Reason: →A+→B as well as →A−→B lie in the plane containing →A and →B but →A×→B lies perpendicular to the plane containing →A and →B.

A
If both assertion and reason are true and the reason is the correct explanation of the assertion.
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B
If both assertion and reason are true but reason is not the correct explanation of the assertion.
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C
If assertion is true but reason is false.
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D
If the assertion and reason both are false.
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E
If assertion is false but reason is true.
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Solution

## The correct option is A If both assertion and reason are true and the reason is the correct explanation of the assertion.Cross product of two vectors is perpendicular to the plane containing both the vectors.

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