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Answer :

Answer:

11

Step-by-step explanation:

a number squared is just a number that is multiplied by itself

so [tex]11^{2}[/tex] is just saying 11×11

[tex]\sqrt{121}[/tex]      given

[tex]\sqrt{11^{2} }[/tex]      changed to exponential form

  [tex]11[/tex]        simplify