Card 1 of 20
How can you tell whether a rational function is proper?
A
Recombine the fractions; the numerator must match the original.
B
A constant.
C
The numerator's degree is less than the denominator's degree.
D
2x2+5x−1(x−1)(x+1)(x+2)=1x−1+2x+1−1x+2
\frac{2x^2+5x-1}{(x-1)(x+1)(x+2)}=\boxed{\frac{1}{x-1}+\frac{2}{x+1}-\frac{1}{x+2}}
(x−1)(x+1)(x+2)2x2+5x−1=x−11+x+12−x+21
Card 1 of 20
1.2.25 Partial fractions (A-level only) Flashcards
20 flashcards on OCR A Level Maths 1.2.25 Partial fractions (A-level only): the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.