JEE Mains Model Paper 24

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Question : 65 of 90

Marks: +1, -0

Assertion : If A is a skew symmetric matrix of order 3, then its determinant must bezero.
Reason: If A is a square matrix of order n and k is any scalar then |kA| = kn|A|

Both A and R are individually true and R is the correct explanation of A
Both A and R are individually true but R is not the correct explanation of A.
A is true but R is false
A is false but R is true.

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