How to use not equal(≠) symbol in LaTeX?

Symbol/UnicodeNot equal/U+2260
Type of symbolInequality
Package (requirement)No
Latex command\ne
Example\ne → ≠

The most popular symbol used in mathematics is “not equal”. In Latex, you need to use \ne command for this symbol, you can also use \neq command.

   \[ a \ne b \]
   \[ \cos x \ne \sin x \]
   % Use \neq command 
   \[ 5 \neq 3 \]
   \[ x^2 + 1 \neq y^2 + 1 \]

Output :

Use not equal symbol in latex.

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