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TS EAMCET · Maths · Application of Derivatives

For \(h, k \in N\), let \(\mathrm{P}(h, k)\) be the point of intersection of the curves \(x^2 y-x^3=8\) and \(y^3-x y^2=32\). If \(\theta\) is the acute angle between these two curves at \(P, \operatorname{then} \tan \theta=\)

  1. A \(\frac{27}{11}\)
  2. B \(\frac{1}{3}\)
  3. C \(\frac{\pi}{2}\)
  4. D 3
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Answer & Solution

Correct Answer

(D) 3

Step-by-step Solution

Detailed explanation

\(\begin{aligned} & \text {} x^2 y-x^3=8 \\ & x^2 \cdot \frac{d y}{d x}+2 x y-3 x^2=0 \\ & \frac{d y}{d x}=\frac{3 x^2-2 x y}{x^2}=3-2\left(\frac{y}{x}\right)=m_1\end{aligned}\)…