how to do PARTIAL FRACTION in mathematics especially when there is cube,fourth - XP Math - Forums

 XP Math - Forums how to do PARTIAL FRACTION in mathematics especially when there is cube,fourth
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 08-01-2007 #1 nilesh p Guest   Posts: n/a how to do PARTIAL FRACTION in mathematics especially when there is cube,fourth root present in denominator ? PARTIAL FRACTION is a one type of method we use in mathematics
 08-01-2007 #2 highfive90 Guest   Posts: n/a If there is a cube or fourth power on the bottom line, and the highest power on the numerator is larger then you can use the method of replacing the fraction with A/... + B/... and so on.If the numerator < denominator then you have to use algebraic long division to find the quotient and remainder, then use the A,B,C method.
 08-01-2007 #3 Nicholas L Guest   Posts: n/a x^a *x^b =x^(a+b)When the denominator contains a term of say (x + 2)^(1/2) then multiply the numerator and the denominator by (x +2)^(1/2) so that the denominator becomes (x + 2) because the addition of the indices (1/2) + (1/2) = 1. For a cube root multiply the numerator and the denominator by say (x + a) ^(1-1/3) and that is multiply both the numerator and the denominator by (x+a)^(2/3). Similarly for any other root. You can now apply the rules of Partial Fractions.

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