0 reads0 ratings0 helpful
If (a_n=n^3), what is the fourth term?
Advertisement
Answer and explanation
Correct answer: \(64\)
For the fourth term, substitute \(n=4\). Thus, \(a_4=4^3=4\times4\times4=64\). Therefore, \(64\) is the correct answer. \(16\) is a close distractor because it equals \(4^2\), not \(4^3\). Exam tip: \(n^3\) means multiplying \(n\) by itself three times.
Frequently asked questions
What is the correct answer to this question?
\(64\)
Why is this the correct answer?
For the fourth term, substitute \(n=4\). Thus, \(a_4=4^3=4\times4\times4=64\). Therefore, \(64\) is the correct answer. \(16\) is a close distractor because it equals \(4^2\), not \(4^3\). Exam tip: \(n^3\) means multiplying \(n\) by itself three times.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Sequences and Progressions. Topic: nth term.
Student feedback
Was this question useful?
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Difficulty
Easy0%
Medium0%
Hard0%
Was the explanation clear?
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
Advertisement