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Mathematics · JEE | VECTOR ALGEBRA

हिन्दी

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The vector product of two vectors is not commutative. Reason (R): For any two vectors \( \vec{a} \) and \( \vec{b} \), \( \vec{a} \times \vec{b} = -(\vec{b} \times \vec{a}) \). In the light of the above statements, choose the correct answer from the options given below:

  1. A
    Both (A) and (R) are true and (R) is the correct explanation of (A).
  2. B
    Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
  3. C
    (A) is true but (R) is false.
  4. D
    (A) is false but (R) is true.
View Answer & Solution

Correct answer · Option A

Both (A) and (R) are true and (R) is the correct explanation of (A).

Explanation

Vector product is anti-commutative because reversing the order introduces a negative sign, making (R) the direct mathematical justification for (A).
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