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Chord of contact of tangents drawn from the point `M(h, k)` to the ellipse `x^(2) + 4y^(2) = 4` intersects at P and Q, subtends a right angle of the centre `theta`

A

Locus of M is `x^(2) + 16y^(2) = 20`

B

`(1)/(OP^(2)) + (1)/(OQ^(2)) = (4)/(5)`

C

Equation of chord of contact is `hx + 4xy = 4`

D

Equation of normal is `3x + 2y + 5 = 0`

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