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JEE Mains · Maths · STD 11 - 10.2 parabola,ellipse,hyperbola

જો રેખા \(\alpha x+2y=1\), જ્યાં \(\alpha\in\mathbb{R}\), અતિવલય \(x^{2}-9y^{2}=9\) ને છેદતી નથી, તો \(\alpha\) નું એક શક્ય મૂલ્ય ___ છે.

  1. A 0.6
  2. B 0.8
  3. C 0.5
  4. D 0.7
Verified Solution

Answer & Solution

Correct Answer

(B) 0.8

Step-by-step Solution

Detailed explanation

\(y=\frac{1-\alpha x}{2}\) Put this in equation of hyperbola \(\therefore x^2-9\left(\frac{1-\alpha x}{2}\right)^2=9\) \(\begin{array}{l}\left(4-9 \alpha^2\right) x ^2+18 \alpha x -45=0 \\ \because \text { line does not intersect hyperbola } \\ \therefore D <0\end{array}\)…
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