61. Karcas us riepes riches ezrosa rem HOCTeE succeres become the Marror 1. (n^2+1)/(n) 2. (-n)^n 3. (-1)^n 4. (cos2n)/(n) 5. (-(3)/(2))^n

Let's analyze each expression:<br /><br />1. $\frac {n^{2}+1}{n}$: This expression simplifies to $n + \frac{1}{n}$.<br /><br />2. $(-n)^{n}$: This expression is equal to $n^n$ if $n$ is even and $-n^n$ if $n$ is odd.<br /><br />3. $(-1)^{n}$: This expression is equal to 1 if $n$ is even and -1 if $n$ is odd.<br /><br />4. $\frac {cos2n}{n}$: This expression does not have a simple general form and depends on the value of $n$.<br /><br />5. $(-\frac {3}{2})^{n}$: This expression is equal to $(-1)^n \cdot (\frac{3}{2})^n$.<br /><br />So, the correct answers are:<br />1. $n + \frac{1}{n}$<br />2. $n^n$ if $n$ is even, $-n^n$ if $n$ is odd<br />3. 1 if $n$ is even, -1 if $n$ is odd<br />4. Depends on the value of $n$<br />5. $(-1)^n \cdot (\frac{3}{2})^n$