JEE Main 2022MathematicsHyperbolaCommon TangentmediumNumerical

JEE Main 2022Hyperbola Question with Solution

From: JEE Main 2022 (Online) 27th July Evening Shift

Question

A common tangent to the curves and does not pass through the fourth quadrant. If touches at and at , then is equal to ______________.

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Show full solutionCorrect answer: 20
Correct answer
20

Step-by-step explanation

Equation of tangent to ellipse and given slope m is : ..... (i)

For slope m equation of tangent to hyperbola is :

....... (ii)

Tangents from (i) and (ii) are identical then

(+2 is not acceptable)

.

Hence, and

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About this question

This is a previous-year question from JEE Main 2022, covering the Hyperbola chapter of Mathematics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.