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partial fractions confusion watch

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    Hi all when should you have partial fractions in this form e.g. have A without a denominator and when should you have a denominator under A
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    (Original post by JT0121)
    Hi all when should you have partial fractions in this form e.g. have A without a denominator and when should you have a denominator under A
    When the numerator of the fraction is of equal degree to the denominator.
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    if the order of the top is less than the order of the underneath you don't need the A on its own.

    so if you have ( 3x + 5 )/{x2 - 9} you won't have A + ....

    ( 3x2 + 5 )/{x2 - 9} you must reduce the order of the top...
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    (Original post by JT0121)
    Hi all when should you have partial fractions in this form e.g. have A without a denominator and when should you have a denominator under A
    Basically if the top is divisible by the denominator, then you end up with something like A + B/(x+1) + C(x-2) ect
 
 
 
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