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Question 170Asked in DSSSB TGT Computer Science, 7 Feb 2024, Shift 2 (12:30 PM)

Which of the following operation includes all tuples that are in R-set but not in S-set?

  1. AR – S
  2. BR Ç S
  3. CR È S
  4. DR × S
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Correct answer: (A) R – S

Explanation

The set difference R − S contains tuples that are in R but not in S. ∩ gives common tuples, ∪ all tuples, × the Cartesian product.

From DSSSB TGT Computer Science PYQ, 7 Feb 2024, Shift 2 (12:30 PM)

This is question 170 of DSSSB TGT Computer Science PYQ, 7 Feb 2024, Shift 2 (12:30 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.