Answer the following questions about rational functions with repeated linear factors.

MATHEMATICS · Multi-part · A Level · Mathematics · Algebra and Functions · Algebra and Functions

Problem

Answer the following questions about rational functions with repeated linear factors. (i) Define a proper rational function. (ii) Write the most general form in which a rational function P(x)(x−3)3\dfrac{P(x)}{(x-3)^{3}} with deg⁡P(x)≤2\deg P(x)\le 2 can be expressed when it is split into simpler fractional terms. (iii) State any two algebraic checks that must be performed before carrying out such a decomposition.

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