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CAIE IGCSE Mathematics Core C2.7.3 Find and Use the Nth Term of the Following Sequences a Linear B Questions

Practise Core CAIE IGCSE Mathematics by deriving linear or simple quadratic nth terms, calculating specified values and testing whether numbers occur in a sequence.

Syllabus
2028–2030
Course
Mathematics 0580
Level
Core

Exam points

  • Form a linear nth-term expression using the common difference as the coefficient of n and the first-term adjustment.
  • Use an nth-term expression to calculate early or specified terms and decide whether a given value belongs to the sequence.
  • Recognise a simple quadratic sequence from its second differences and determine its nth-term expression.

CAIE IGCSE Mathematics Core C2.7.3 Find and Use the Nth Term of the Following Sequences a Linear B Questions question 1

[Maximum number: 4]

Question (a)

(a)

These are the first five terms of another sequence.
4111825324\quad11\quad18\quad25\quad32

[ 4 ]

Question (i)

(i)

Find the nth term of the sequence.

[ 2 ]

Question (ii)

(ii)

Show that 361 is a term in the sequence.

[ 2 ]
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