Given the following expression A) ( a b ) c B) a ( b c ) C) a ( b c ) D) | a |( b c ) E) ( a b ) ( b c ) Then which of the following is not correct

MHT CET 2026 Mathematics question

Given the following expression A) B) C) D) E) Then which of the following is not correct

(A)B and E are meaningfulCorrect
(B)A and D are meaningful
(C)B, C and E are meaningless
(D)A is meaningful but B is meaningless

Answer: (A)

Solution

Check each expression. A: is a vector, its dot product with is a scalar: meaningful. B: is a scalar, and a cross product of a vector with a scalar is undefined: meaningless. C: is a dot product of a vector with

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Question ID VK-101525