anialewandowki anialewandowki

25-03-2018
Mathematics

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Find the value of x: 7e(×/3)=14

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ramaaabdou ramaaabdou

30-03-2018

7e^(×/3)=14
e^(×/3)=14/7
e^(×/3)=2
take ln of both sides;
lne^(×/3)=ln2
****You should be familiar that lne^x=x as ln is the inverse function of e and vice versa****
then;
x/3=ln2
x=3ln2
x approximately is equal to 2.1

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