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et T and S be linear transformations on a finite dimensional vector space V, where S is non-singular. Then,ans.Rank (ST)= Rank(TS) ≠ Rank TRank (ST) ≠ Rank(TS) ≠ Rank TRank (ST) ≠ Rank(TS) = Rank TRank (ST) = Rank(TS) = Rank T Previous Marked for Review Next

Question

et T and S be linear transformations on a finite dimensional vector space V, where S is non-singular. Then,ans.Rank (ST)= Rank(TS) ≠ Rank TRank (ST) ≠ Rank(TS) ≠ Rank TRank (ST) ≠ Rank(TS) = Rank TRank (ST) = Rank(TS) = Rank T Previous Marked for Review Next

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Solution

The correct answer is Rank (ST) = Rank(TS) ≠ Rank T.

Here's why:

  1. Rank (ST) = Rank(TS): This is because the rank of a product of two matrices (or linear transformations in this case) is equal regardless of the order of multiplication. This is a property of the rank of a matrix product.

  2. Rank (ST) ≠ Rank T: This is because the rank of a product of matrices is not necessarily equal to the rank of the individual matrices. In other words, multiplying two matrices (or linear transformations) can change the rank.

So, the rank of the product of S and T is equal to the rank of the product of T and S, but not necessarily equal to the rank of T alone.

This problem has been solved

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