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$$ {({1\over25})^{-1\over2}}+{({8\over 27})^{-1\over3}}$$
5Q:
$$ {({1\over25})^{-1\over2}}+{({8\over 27})^{-1\over3}}$$
- 1$$ {9\over 2}$$false
- 2$$ {13\over 2}$$true
- 3$$ {13\over 15}$$false
- 4$$ {5\over 9}$$false
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