From the point tangents are drawn to and are perpendicular to each other than is

MATHEMATICS · Single correct · CBSE · Mathematics · Conic Sections · Conic Sections

Problem

From the point (λ,3)(\lambda, 3) tangents are drawn to x29+y24=1\frac{x^2}{9} + \frac{y^2}{4} = 1 and are perpendicular to each other than λ\lambda is (1) ±1\pm 1 (2) ±2\pm 2 (3) ±3\pm 3 (4) ±4\pm 4

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