JEE Main 202313 AprilEvening Shift
- Exam
- JEE Main
- Year
- 2023
- Date
- 13 April
- Shift
- Evening Shift
- Subject
- Mathematics
- Chapter
- Hyperbola
JEE Main 2023 · 13 April · Evening Shift · Mathematics · Hyperbola
The foci of a hyperbola are ( ± 2, 0 ) and its eccentricity is...
The foci of a hyperbola are and its eccentricity is . A tangent, perpendicular to the line , is drawn at a point in the first quadrant on the hyperbola. If the intercepts made by the tangent on the - and -axes are and respectively, then is equal to
Correct answer
0
Step-by-step solution
The given equation of hyperbola is
The tangent is perpendicular to .
Slope of tangent is
Equation of tangent,
Equation of tangent is
( Tangent is in quadrant\left⇒ C < 0\right)⇒ y = \dfrac{3}{2}x - \dfrac{4}{3}⇒ \dfrac{x}{\left(\dfrac{8}{9}\right)} + \dfrac{y}{\left(- \dfrac{4}{3}\right)} = 1⇒ \left|6a\right| + \left|5b\right| = \left|\dfrac{6 \times 8}{9}\right| + \left|\dfrac{5 \times \left(- 4\right)}{3}\right| = 12
Hence this is the required option.