Mathematics · Coordinate Geometry
यदि एक परवलय (parabola) y2 = 4ax की नाभि (focus) से उसकी नियता (directrix) की लम्बवत दूरी 3/2 है, तो बिंदु (4a, -4a) पर खींचे गए अभिलंब (normal) का समीकरण है
- 1x + 2y + 3 = 0
- 2x - 2y = 9
- 32x - y = 9✓
- 42x + y = 3
सही उत्तर देखें
2x - y = 9
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