Question
Each of Exercises $1-6$ gives a formula for the $n$ th term $a_{n}$ of asequence $\left\{a_{n}\right\} .$ Find the values of $a_{1}, a_{2}, a_{3},$ and $a_{4} .$$$a_{n}=2+(-1)^{n}$$
Step 1
The given formula for the sequence is \( a_{n} = 2 + (-1)^{n} \). This means that for each term \( a_{n} \), you add 2 to \((-1)^{n}\). Show more…
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Each of Exercises $1-6$ gives a formula for the $n$ th term $a_{n}$ of a sequence $\left\{a_{n}\right\} .$ Find the values of $a_{1}, a_{2}, a_{3},$ and $a_{4} .$ $$ a_{n}=\frac{1-n}{n^{2}} $$
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Each of Exercises $1-6$ gives a formula for the $n$ th term $a_{n}$ of a sequence $\left\{a_{n}\right\} .$ Find the values of $a_{1}, a_{2}, a_{3},$ and $a_{4} .$ $$ a_{n}=\frac{2^{n}}{2^{n+1}} $$
Each of Exercises $1-6$ gives a formula for the $n$ th term $a_{n}$ of a sequence $\left\{a_{n}\right\} .$ Find the values of $a_{1}, a_{2}, a_{3},$ and $a_{4} .$ $$ a_{n}=\frac{2^{n}-1}{2^{n}} $$
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