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Solution 3.3:1d

From Förberedande kurs i matematik 1

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Current revision (14:19, 1 October 2008) (edit) (undo)
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Exactly as in exercise c, we write the left-hand side as
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Exactly as in exercise c, we write the left-hand side as <math>10^{-x}</math>, and the right-hand side as <math>0\textrm{.}0001 = 10^{-4}</math>, i.e. <math>10^{-x} = 10^{-4}</math>, which gives <math>x=4\,</math>.
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<math>\text{1}0^{-x}</math>, and the right-hand side as
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<math>0.000\text{1}=\text{1}0^{-4}</math>, i.e.
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<math>\text{1}0^{-x}=\text{1}0^{-4}</math>, which gives
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<math>x=\text{4}</math>.
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Current revision

Exactly as in exercise c, we write the left-hand side as 10−x, and the right-hand side as 0.0001=10−4, i.e. 10−x=10−4, which gives x=4.

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