How to use union(∪) symbol in LaTeX?

Symbol typeMathematics
Package (requirement)No
Latex command\cup
ExampleS1 \cup S2 → S1 ∪ S2

Union symbol looks like the English letter U. Which is represented by the command \cup in LaTeX.

You need to use the bigunion symbol when adding the set of numbers n for which you need to use the command \bigcup

   \[ a \cup b \]
   \[ S_1 \cup S_2 \]
   \[ \bigcup_{i=1}^k F_i \]
   \[ \bigcup\limits_{i=1}^n S_i \] 

Output :

Union symbol in latex.

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