YingMasini
YingMasini
06-05-2014
Mathematics
Answered
Solve equation e^{2x} + 2e^{x} −3 = 0
Answer :
Аноним
Аноним
06-05-2014
[tex]e^{2x}+2e^x-3=0\\\\\underbrace{\left(e^x\right)^2+2e^x\cdot1+1^2}_{(*)}-1^2-3=0\\\\(e^x+1)^2-1-3=0\\\\(e^x+1)^2-4=0\\\\(e^x+1)^2=4\iff e^x+1=\sqrt4\to e^x+1=2\\\\e^x=2-1\\\\e^x=1\\\\e^x=e^0\iff x=0[/tex]
Answer Link
VIEW ALL ANSWERS ( 45+ )
Other Questions
when you're working with a word processing document and you press the del key what happens
WHAT VILLAGE WAS CREATED BY PEOPLE FROM ANOTHER AREA
what area of egypt is known as "upper egypt"
If $8 = 3/5 of the bill how much was the bill
2x=(360÷4) solve for x
what was a major result of Henry Ford's innovative manufacturing technique?
Will multiple births, when many egg cells are fertilised outside the body and then implanted, produce identical or similar offspring?
What is 4.23 as a mixed number in simplest form
A study was done to investigate the population of polar bears over time. The correlating linear model is shown below, where x represents the number of years aft
what is the largest lake in africa
