For , list all -values where the graph of has (i) horizontal tangent lines and (ii)…

MATHEMATICS · Subjective · A Level · Mathematics · Differentiation · Differentiation

Problem

For

f(x)=\dfrac{x^{3}-3x}{x^{2}-4}

, list all

x

-values where the graph of

f

has (i) horizontal tangent lines and (ii) vertical tangent lines.

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