An exponent raised to another exponent...whoa, find the domain
\[f(x)=\frac{ 1-e^x^2 }{ 1-e^1-x^2 }\]
f(x)=(1-e^x^2)/(1-e^1-x^2)
the denominator cant be zero
What is your numerator by the way?? What is the power of e there ??
one minus e to the power of x squared
\[\large f(x) = \frac{1 - e^{x^2}}{1- e^1 - x^2}\] Right ??
ya except the bottom is 1-e^(1-x^2)
\[\large f(x) = \frac{1 - e^{x^2}}{1- e^{1 - x^2}}\] Now ??
yup perfect
So, you know denominator can't be 0..
ya how do i solve this tho
do i have to use log
\[1 - e^{1-x^2} \ne 0 \implies e^{1-x^2} \ne 1\]
i hate u
You must.. I hate you too.. Because I don't like boys.. I like Girls.. Ha ha ha...
i dont know how i didnt see that i wanted to solve it somehow
thanks for your help as always
If \(x^2 = 1\) Then : \[e^{1-1} = e^0 = 1\] But we don't need it is equal to 1.. So \(x^2 \ne 1\)
ya i see that now :-)
Got or not ?? Or need more explanation??
\[x \ne \pm 1\]
You can use ln here if you want: \[(1-x^2) \ln(e) \ne \ln(1) \implies 1 - x^2 \ne 0 \implies x^2 \ne 1\]
thats perfect water, thats the way i was originally thinking of it but im rusty with logs
Thanks..
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