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Q.

The angle between the two tangents drawn from the point (1,4) to the parabola $y^{2} = 12 x$ is $\tan^{- 1} (k)$ then 2K=

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Detailed Solution

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$y^{2} = 12 x$ $a = 3$

$θ = \tan^{- 1} (\frac{\sqrt{S_{11}}}{x_{1} + a}) = \tan^{- 1} (\frac{1}{2})$

$K = \frac{1}{2}$ $2 K = 1$

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