Penjelasan dengan langkah-langkah:
[tex] {9}^{ - 2} + {3}^{ - 2} \\ = \frac{1}{ {9}^{2} } + \frac{1}{ {3}^{2} } \\ = \frac{1}{81} + \frac{1}{9} \\ = \frac{1}{81} + \frac{9}{81} \\ = \frac{10}{81} [/tex]
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Penjelasan dengan langkah-langkah:
[tex] {9}^{ - 2} + {3}^{ - 2} \\ = \frac{1}{ {9}^{2} } + \frac{1}{ {3}^{2} } \\ = \frac{1}{81} + \frac{1}{9} \\ = \frac{1}{81} + \frac{9}{81} \\ = \frac{10}{81} [/tex]