hitunglah hasil 2^-1+5^-2 adalah

[tex] = {2}^{ - 1} + {5}^{ - 2} \\ = \frac{1}{2} + \frac{1}{ {5}^{2} } \\ = \frac{1}{2} + \frac{1}{25} \\ = \frac{25 + 2}{50} \\ = \frac{27}{50} [/tex]