Math Question
![Find the \( 21^{\text {st }} \) term in the following arithmetic sequence :
\[
-1,-3,-5,-7, \ldots
\]
Hint: Write a formula to help you.
1 st term + common difference(desired term - 1)](https://d3hlidq5bf9vg0.cloudfront.net/app-server-student/2022/4/2/0986ade7-21c0-4854-8449-958f0a599a1a.png "Find the \( 21^{\text {st }} \) term in the following arithmetic sequence :
\[
-1,-3,-5,-7, \ldots
\]
Hint: Write a formula to help you.
1 st term + common difference(desired term - 1)")
Solution
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