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Thangents are drawn from (-1, 0) to y^2 ...

Thangents are drawn from `(-1, 0)` to `y^2 = 4x`. Then the area of the triangle fromed by the tangents and the chord of the contact is : (A) 8 sq. units (B) 2 sq. units (C) 4 sq. units (D) 1 sq.units

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