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AP EAMCET · Maths · Hyperbola

The locus of the point of intersection on the line \(\sqrt{3} x-y-4 \sqrt{3} k=0\) and \(\sqrt{3} k x+k y-4 \sqrt{3}=0\) for different real values of \(k\) is a hyperbola \(H\). If \(e\) is the eccentricity of \(H\), then \(4 e^2=\)

  1. A \(48\)
  2. B \(39\)
  3. C \(13\)
  4. D \(16\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(16\)

Step-by-step Solution

Detailed explanation

\[ \begin{aligned} & \sqrt{3} x-y-4 \sqrt{3} k=0 \\ & \sqrt{3} k x+k y-4 \sqrt{3}=0 \end{aligned} \] Multiplying of \(k\) in Eq. (i) and adding in Eq. (ii), we get \[ x=2 \frac{\left(1+k^2\right)}{k} \] Multiplying of \(k\) in Eq. (i) and subtracting from Eq. (ii), we get…