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# Uses of partial fractions

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## Uses of partial fractions

Partial Fractions are used to turn functions that cannot be integrated into simple fractions that can.

When the denominator is **linear **the integration will use **logarithms**.

When the denominator is a **quadratic**, you may still be able to use logarithms, but probably will need to use a **trigonometric integration rule **(usually studied in Further Maths, so check with your teacher if you need to know about this).

By rewriting a function as partial fractions, we are able to make approximations to the value of the function using the **binomial expansion**.