# Math Help - 3- -1/18

1. ## 3- -1/18

$3 - ^-1/18$

now what ?

2. Originally Posted by thomaztriz
$3 - ^-1/18$

now what ?

What is the question? Do you want to knoe how to simplify this?

CB

3. i want to know how to simplify that ..

the answe in my text book is 0.etc etc etc

4. Originally Posted by thomaztriz
i want to know how to simplify that ..

the answe in my text book is 0.etc etc etc
What you have typed most closly corresponds to:

$3-\left(-\frac{1}{18}\right)=3+\frac{1}{18}\approx 3.05556$

but I suspect that is not what you mean.

May be you mean

$x=3^{-\frac{1}{18}}=1/3^{\frac{1}{18}}$ ?

which should be evaluatable on your calculator

or:

$x=e^{-\frac{1}{18}\ln(3)$

CB