Ocr a level maths - Study guides, Class notes & Summaries

formula of an arithmetic series - ANS-- Sn = n/2 (2a + (n-1)d) - Sn = n/2 (a + l) where a is the first term and l is the last term what is an arithmetic series - ANS-the sum of the terms of an arithmetic sequence nth term of an arithmetic sequence - ANS-- Un = a + (n-1)d - a = the first term - d = the common difference nth term of a geometric sequence - ANS-- Un = ar^(n-1) - a = first term - r = common ratio formula of first n terms of a geometric sequence - ANS-- Sn = a(1-r^n) / 1-r -...

A+ level OCR Maths Statistics 1 Solutions

A+ level OCR Maths Statistics 1 Solutions

OCR A-Level Pure Mathematics and Mechanics Paper 3 Mark Scheme 2024 (H240_03)

Switching to OCR A from OCR B (Salters)Introduction We are really excited about our GCE Chemistry A qualification. Whether taking on the AS Level or the full A Level, this fantastic course is a great qualification for those with an interestin the subject. Why choose Chemistry A?  Building on our existing popular course, the specification was updated in consultationwith teachers, higher education, learned societies and industry.  The ‘Big Ideas’ of chemistry are arranged in topics...

OCR A LEVEL 2022 FURTHER MATHS A MARK SCHEME PURE CORE 1

OCR AS LEVEL 2022 FURTHER MATHS A MARK SCHEME ADDITIONAL PURE MATHS

formula of an arithmetic series - ANS-- Sn = n/2 (2a + (n-1)d) - Sn = n/2 (a + l) where a is the first term and l is the last term what is an arithmetic series - ANS-the sum of the terms of an arithmetic sequence nth term of an arithmetic sequence - ANS-- Un = a + (n-1)d - a = the first term - d = the common difference nth term of a geometric sequence - ANS-- Un = ar^(n-1) - a = first term - r = common ratio formula of first n terms of a geometric sequence - ANS-- Sn = a(1-r^n) / 1-r -...