Enter the first four terms.

1/2, 2, 9/2, and 8.

Step-by-step explanation:

In this case, we have an explicit rule.

So, to find the nth term, we can simply substitute a value into our function and evaluate.

For the first term, n=1. Thus:

Evaluate:

Hence, our first term is 1/2.

For the second term, n=2. Thus:

Evaluate:

Hence, the second term is 2.

For the third term, n=3. Thus:

So, the third term is 9/2.

And for the fourth term, n=4. Thus:

Therefore, the fourth term is 8.

Hence, our first four terms are: 1/2, 2, 9/2, and 8.

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step-by-step explanation: