Question

 Given that 310 = 59 049 , what is 3-10 expressed as an exact value?

Answer 1

`x^(-n)=(1)/(x^n) \\ \\ 3^(10)=59049 \\ 3^(-10)=(1)/(3^(10))=(1)/(59049) \\ \\ \boxed{3^(-10)=(1)/(59049)}`