To perform the subtraction \(4.66 \times 10^{-5} - 7.34 \times 10^{-7}\), we first need to express both numbers in terms of the same exponent.
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Convert \(7.34 \times 10^{-7}\) to an equivalent form with \(10^{-5}\): \[ 7.34 \times 10^{-7} = 0.0734 \times 10^{-5} \]
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Now we can rewrite the subtraction: \[ 4.66 \times 10^{-5} - 0.0734 \times 10^{-5} = (4.66 - 0.0734) \times 10^{-5} \]
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Perform the subtraction: \[ 4.66 - 0.0734 = 4.5866 \]
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Finally, we write the result: \[ 4.5866 \times 10^{-5} \]
So, the answer is: 4.5866 × 10^{-5}.