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Question 68Asked in DSSSB TGT Computer Science (Technical), 12 Sep 2025, Shift 2 (1:00 PM)

If the rows are interchanged into columns, then which of the following options is true?

  1. ADeterminant values will be different.
  2. BDeterminant value remains unaltered.
  3. CDeterminant values will have opposite sign.
  4. DDeterminant values will be unity.
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Correct answer: (B) Determinant value remains unaltered.

Explanation

Interchanging rows and columns gives the transpose, and det(Aᵀ) = det(A), so the determinant value is unchanged.

From DSSSB TGT Computer Science PYQ (Technical), 12 Sep 2025, Shift 2 (1:00 PM)

This is question 68 of DSSSB TGT Computer Science PYQ (Technical), 12 Sep 2025, Shift 2 (1:00 PM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.