Angle $$\phi$$ between curves $$y = f(x)$$ and $$y = g(x)$$ at intersection point:
$$\tan \phi = \left| \frac{m_1 - m_2}{1 + m_1 m_2} \right|$$
where $$m_1 = f'(x_0)$$, $$m_2 = g'(x_0)$$
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CAT Formulas
Applications of Derivatives
Angle Between Two Curves
Angle $$\phi$$ between curves $$y = f(x)$$ and $$y = g(x)$$ at intersection point:
$$\tan \phi = \left| \frac{m_1 - m_2}{1 + m_1 m_2} \right|$$
where $$m_1 = f'(x_0)$$, $$m_2 = g'(x_0)$$
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