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elena-s [515]
3 years ago
6

Use natural logarithms to solve the equation. e2x = 1.4 Round to the nearest thousandth.

Mathematics
2 answers:
Firlakuza [10]3 years ago
5 0

Answer: x=0.168

Step-by-step explanation:

To solve the equation e^{2x}=1.4 you need to apply natural logarithm to both sides of the equation:

ln(e)^{2x}=ln(1.4)

According to the logarithms property:

ln(b)^a=aln(b)

Then, applying the property, you get:

(2x)ln(e)=ln(1.4)

You need to remember the following:

ln(e)=1

Therefore:

2x(1)=ln(1.4)\\\\2x=ln(1.4)

And finally, you must divide both sides of the equation by 2:

\frac{2x}{2}=\frac{ln(1.4)}{2}\\\\x=0.1682

Rounded to the nearest thousand:

x=0.168

harina [27]3 years ago
4 0

Answer:

x = 0.16823611831

Step-by-step explanation:

ln (natural log), when multiplied by e, cancels it out.

Therefore ln*e2x = ln*1.4

2x = 0.33647223662

x = 0.16823611831

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