Natural Logirthm Unknown Value

Complex numbers, rational functions, logarithms, sequences and series, matrix operations, etc.
Posts: 1
Joined: Tue Jun 22, 2010 4:34 pm

Natural Logirthm Unknown Value

Postby elipotvin » Tue Jun 22, 2010 4:39 pm

Hello, this is my first time on this site and I need some help with a natural logarithm equation with one unknown.

13.14587 - 1.77412x - 3.74394x^2 = ln(2*x/a) - (4.6e^-6)*(x^2)/a

the x values i need to solve for are 0.6-1.2 in increments of 0.1

I need to solve for the value of a at each value of x.

Would someone be able to help me simply this equation to solve for a. Thank you very much

User avatar
Posts: 1628
Joined: Mon Dec 08, 2008 4:22 pm

Postby stapel_eliz » Tue Jun 22, 2010 8:09 pm

Since one copy of is inside a log and the other is inside a rational expression, I don't believe it is possible to solve this for algebraically. You'll have to work numerically.

Return to “Advanced Algebra ("pre-calculus")”