O-LevelMathematicsNumber4024/12 · Oct/Nov 2018 · Q213 Marks
Evaluate 9¹ + 9⁰ .
- (a)Evaluate 9¹ + 9⁰ .[1]
- (b)Find n, where 4ⁿ = 2ⁿ⁻¹.[2]
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2018). The mark or mark type is shown in brackets.
- [1] 10
- [2] -1 nfww
- B1 for [4ⁿ =] 2²ⁿ, or (2²)ⁿ; or for 2n = n − 1
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