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What is $3^{-1} + 3^{-2} \pmod{25}$? Express your answer as an integer from $0$ to $24$, inclusive.

 Jun 19, 2022
 #1
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The answer is 18.

 Jun 19, 2022
 #2
avatar+2293 
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Here: https://web2.0calc.com/questions/number-theory_30

 Jun 19, 2022
 #3
avatar+117752 
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Please present your questions properly.

 Jun 19, 2022

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