Non-standard limits
Non-standard limits
3 marks
Tim Gan Math Original
Find the positive integer \(n\) if \(\sum_{r=1}^{n}(4r+1)=189\).[3]
Solution:
Solution locked
680+ questions here come with free worked solutions. A free account saves your questions and progress; this one needs tuition enrolment.
Create a free account to practise similar questions.
Answer:\(n=9\)
Need help? Join our JC Math tuition classes.
Learn more