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If (a_n=3n+4), what is the seventh term?
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Answer and explanation
Correct answer: \(25\)
For the seventh term, substitute \(n=7\): \(a_7=3\times 7+4=21+4=25\). Therefore, the correct answer is \(25\). \(23\) may result from an error in multiplication or addition. Exam tip: after substituting the term number, multiply first and then add.
Frequently asked questions
What is the correct answer to this question?
\(25\)
Why is this the correct answer?
For the seventh term, substitute \(n=7\): \(a_7=3\times 7+4=21+4=25\). Therefore, the correct answer is \(25\). \(23\) may result from an error in multiplication or addition. Exam tip: after substituting the term number, multiply first and then add.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Sequences and Progressions. Topic: nth term.
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