Core 4 splitting partial fractions help!! :)
the question asked me to show (2 / (x - 1) (x - 3)) in partial fractions which i did and got : (1 / (x - 3)) - (1 / (x - 1)) which is correct
it then asked to use that answer to express (4 / ((x - 3)^2)((x - 1)^2)) in partial fractions,
i thought i would just have to add a (1 / (x - 1)^2) and (1 / (x - 3)^2), which would give: (1 / (x - 3)) + (1 / (x - 3)^2) - (1 / (x - 1)) + (1 / (x - 1)^2),
but the answer in the back is very slightly different:
(1 / (x - 3)) - (1 / (x - 3)^2) + (1 / (x - 1)) + (1 / (x - 1)^2)
can someone explain why i am wrong and explain a method?
or is the book is wrong
thanks in advance
it then asked to use that answer to express (4 / ((x - 3)^2)((x - 1)^2)) in partial fractions,
i thought i would just have to add a (1 / (x - 1)^2) and (1 / (x - 3)^2), which would give: (1 / (x - 3)) + (1 / (x - 3)^2) - (1 / (x - 1)) + (1 / (x - 1)^2),
but the answer in the back is very slightly different:
(1 / (x - 3)) - (1 / (x - 3)^2) + (1 / (x - 1)) + (1 / (x - 1)^2)
can someone explain why i am wrong and explain a method?
or is the book is wrong
thanks in advance
(edited 13 years ago)
anyone? 
Original post by goerigi
it then asked to use that answer to express (4 / ((x - 2)^2)((x - 1)^2)) in partial fractions,
you sure that bit is correct?
Original post by Freakonomics123
you sure that bit is correct?
ohh that should be (x - 3)^2. typo! sorry
Original post by Freakonomics123
you sure that bit is correct?
so do you have any ideas
Original post by vc94
(4 / ((x - 3)^2)((x - 1)^2))
equals the square of
(2 / (x - 1) (x - 3)) = square of [(1 / (x - 3)) - (1 / (x - 1))]
equals the square of
(2 / (x - 1) (x - 3)) = square of [(1 / (x - 3)) - (1 / (x - 1))]
thanks
but could you explain how (2 / (x - 1) (x - 3)) = square of [(1 / (x - 3)) - (1 / (x - 1))Original post by goerigi
thanks but could you explain how (2 / (x - 1) (x - 3)) = square of [(1 / (x - 3)) - (1 / (x - 1))
but could you explain how (2 / (x - 1) (x - 3)) = square of [(1 / (x - 3)) - (1 / (x - 1))the square of the square of
because;
Quick Reply
Related discussions
- chemistry aqa a level help
- Partial Fractions Question
- OCR A-level Mathematics A Paper 1 (H240/01) - 6th June 2023 [Exam Chat]
- Integration
- Psychology a level HELP
- Integration question
- Help with AL Maths question
- what Integration technique should I be using?
- Chemistry Kc Question
- Dimensional Analysis
- Edexcel A2 Mathematics: Core Mathematics C4 6666 01 - 22 June 2018 [Exam Discussion]
- Imperial Physics low student satisfaction
- Sketching Rational curves
- Algebra help for proof by induction
- Help maths
- edexcel further maths core pure paper 1
- a level chemistry please help
- MAT practice
- Ocr mei unofficial markscheme a level (paper 1 2023)
- Preparing for the Oxford PAT- Maths
Latest
Trending
Last reply 4 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
Trending
Last reply 4 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
