Published by:
CGP EDU Academic Team
Published on: August 14, 2026
An equation of a tangent common to the parabolas y 2 = 4x and x 2 = 4y is
Text Solution
Verified by ExpertsThe correct answer is:
D
Let the equation of tangent to the parabola y 2 = 4x is
y = mx + 
...(1)
solving equation (1) with parabola x 2 = 4y ⇒ x 2 = 4 
Now put D = 0 & find the value of m
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