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Math Help - How to solve for the indepent variable "t" without using approximation methode

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    How to solve for the indepent variable "t" without using approximation methode

    -0.02 = 0.14*e-8.875t - 1.14*e-1.125t
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    Re: How to solve for the indepent variable "t" without using approximation methode

    Quote Originally Posted by jaltiti View Post
    -0.02 = 0.14*e-8.875t - 1.14*e-1.125t
    briefly, by using the laws of logarithms, but post it in the right sections

    this section is for welcome messages only(as a new user),
    Thanks from topsquark
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    Re: How to solve for the indepent variable "t" without using approximation methode

    Since that is a difference of exponentials, taking the logarithm of both sides will not help.

    You could start by dividing through by e8.875t to get -.02e8.875t= 0.14- 1.14e7.75.
    Now, 7.75 divides into 8.875 1.1452 times. That is if we let x= e[sup]7.75[/tex] that equation becomes x1.1452= 0.14- 1.14 x.
    But since that exponent is not an integer, that is not a polynomial and I don't believe there is any non-numerical method to solve either it or the original equation.
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