JEE Main 2019 — Math solution | Fundamenthol

JEE Main2019Math

Q.

If the tangents on the ellipse 4x² + y² = 8 at the points (1, 2) and (a, b) are perpendicular to each other, then a² is equal to

A
$\frac{64}{17}$
B
$\frac{2}{17}$
C
$\frac{4}{17}$
D
$\frac{128}{17}$

Solution

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