Year 13 Maths
Binomial expansion and series
The binomial expansion for rational powers and its validity, arithmetic and geometric series, sigma notation, and sequences defined recursively.
Binomial expansion and series free practice
No timer and no account needed. Check each answer as you go, then read the explanation.
1. Aisha saves £100 in January and then £15 more each month than the month before, so £115 in February, and so on. How many pounds has she saved in total after 24 months?
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