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Plz tell correct answer with explanation
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this is your answer hope it's helpful
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We know that the interchange of two adjacent rows (or columns ) changes the value of a determinant only in sign and not in magnitude. Hence corresponding to every element Δ of B there is an element Δ
′
in C obtained by interchanging two adjacent rows (or columns )in Δ.
It follows that n(B)≤n(C). That is, the number of elements in B is less than or equal to the number of elements in C.
Similarly, n(C)≤n(B).
Hence n(B)=n(C), that is B has as many elements as C.
Option D is not correct.
The set A will also have determinants with values 0. Hence, option C is incorrect.
Option A is incorrect as C is not empty.
Hence, option B is correct.
Apka answer sis ....Hope it helps agar nhi kiya toh koi ni behn smjh kar maaf kar dena...xD
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