Teaching OSSSC TGT Teachers Mock Test Series 2025 Mathematics Parabola, Ellipse and Hyperbola Tangents and Normals to Conics

If y = mx + 4 is a tangent to both the parabolas, y2 = 4x and x2 = 2by, then b is equal to

1

-64

2

128

3

-128

4

-32

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