To find out which of the options results in the answer of 1, let's evaluate each one:
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(−2.97): This is just -2.97, which is not equal to 1.
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0: This is equal to 0, which is not equal to 1.
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13 − (7.42): This simplifies to \( 13 - 7.42 = 5.58 \), which is not equal to 1.
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0: Again, this is equal to 0, which is not equal to 1.
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3 (8): If this is interpreted as \( 3 \times 8 = 24 \), which is not equal to 1.
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0 5 + 0 9: This seems to be an unclear expression. If it is meant to represent \( 0 + 5 + 0 + 9 \) then it simplifies to \( 5 + 9 = 14 \), which is not equal to 1. Alternatively, if it is intended as \( 0 + 5 + 0 - 9 \) that results in \( 5 - 9 = -4 \), which is not equal to 1.
None of the provided options lead us to a result of 1. If there is any misinterpretation or if there are additional options, please provide more details!