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With respect to relational algebra, which of the following operations are included from mathematical set theory?

  1. Join
  2. Intersection
  3. Cartisian product
  4. Project
    1. a and d
    2. b and c
    3. c and d
    4. b and d
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Intersection and Cartesian Product.
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b and c(intersection and cartesian are used from mathematical set theory)
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Answer 2 b,c

Set theory contain operation e.g. union, intersection,set difference, Cartesian product, complementation and ,power set.

https://www.cs.sfu.ca/~ggbaker/zju/math/set-oper.html

https://en.m.wikipedia.org/wiki/Set_theory

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ans- b  Intersection and​​​​​​ Cartisian product

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intersection and cartesian product are taken from SET theory.
Answer:

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