O-LevelMathematicsAlgebra and graphs4024/11 · May/June 2021 · Q144 Marks
This is the term-to-term rule for a sequence. Multiply by 2 and add 3 The first three terms in this sequence are 1, 5 and 13. Write down the next term in this sequence.
- (a)This is the term-to-term rule for a sequence. Multiply by 2 and add 3 The first three terms in this sequence are 1, 5 and 13. Write down the next term in this sequence.[1]
- (b)(i)This is the term-to-term rule for a different sequence. Square and subtract 5 The second and third terms in this sequence are -1 and -4. Write down the fourth term in this sequence.[1]
- (b)(ii)Write down the two possible values for the first term in this sequence.[2]
Mark scheme
Marking points from the official mark scheme (May/June 2021). The mark or mark type is shown in brackets.
- [1] (a) 29
- [1] (b)(i) 11
- [2] (b)(ii) [+] 2 and - 2
- M1 for √(-1 + 5) oe
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