Question

3^-3 + 9^-1 = ?
please tell me the ans​

Answer 1

Answer:  4/27

Step-by-step explanation:

=1/3^3+1/1/9^1

=1/27+1/9                                                    (Property= a^-m=1/a^m)

=          1+3                   =   4/27

   -----------------------

           27

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