Solve logarithmic equations
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Solving logarithmic equations
1
------------ = 4
e^x - e^(-x)
ln(x^2) = ln(9)
5^(3x+4) = 2^(1-5x)
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Solution Summary
Logarthmic equations are solved.
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Question 1:
1
------------ = 4
e^x - e^(-x)
1 = 4e^x -4e^(-x)
e^x = 4e^2x - 4 (multiplying through by e^x)
let z = e^x
z = 4z^2 - 4
4z^2 - z - 4 = 0
Use the quadratic ...
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