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प्रश्न
The equation of directrix of the parabola y2 = -x is:
विकल्प
4x + 1 = 0
4x - 1 = 0
x – 1 = 0
x + 4 = 0
उत्तर
4x - 1 = 0
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संबंधित प्रश्न
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