Exam-style Questions: Sequences
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'Start with a number, double it and then add one'.
Use this rule to fill in the boxes below.
(Marks available: 3)
Answer outline and marking scheme for question: 1
8, 11, 7
(Marks available: 3)
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Write down the nth term of each of the following sequences.
a) 2 5 10 17 26 37 ....
(2 marks)
b) 4 16 36 64 100 144 ....
(2 marks)
(Marks available: 4)
Answer outline and marking scheme for question: 2
a) n2 + 1
b) 4n2 or (2n)2
(Marks Available: 4)