# Math Help - finding the MLE

1. ## finding the MLE

I have a question about finding the MLE..

$Let\;\; X_1, \cdots, X_n \mbox{be a random sample from a population with pdf}\;\;f_{\theta}(x)=(\theta+1)x^{\theta}$
$;\;0-1 \mbox{is an unknown parameter}.$

Find the MLE for $e^{\theta}$

I am confused on how to start this. To find the MLE of $\theta$, we would find the likelihood function of $L(\theta|x)$. so does this mean the to find the MLE for the MLE for $e^{\theta}$, I would go like this:

$L(e^{\theta}|x)= \prod_{i=1}^n (e^{\theta}+1){x_i}^{e^{\theta}}$

is this right??

2. Are you familiar with the Invariance Property of the MLEs?