Question

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Simplify the following:-
Ch-Exponents and powers​

Answer 1

Step-by-step explanation:

${({5}^{ - 1} + {8}^{ - 1})}^{2} \\ {( {5}^{ - 1}) }^{2} + {( {8}^{ - 1} )}^{2} + 2 \times \frac{1}{5} \times \frac{1}{8 } \\ \frac{1}{25} + \frac{1}{64} + \frac{1}{20} \\ \frac{64 + 25 + 80}{1600} \\ \frac{169}{1600} \\ 0.105625$

Answer 2

Answer:

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