Question

3^2 + 3^-4 + 3^5 is equal to. ​

Answer 1

Answer:

${3}^{2} + {3}^{ - 4} + {3}^{5} \\ = 9 + \frac{1}{ {3}^{4} } + 243 \\ = 9 + \frac{1}{81} + 243 \\ = \frac{729 + 1 + 19683}{81} \\ = \bf\frac{20413}{81}$