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MHT CET202013 Oct 2020Morning ShiftMathematicsParabolaActual

The length of latus rectum of the parabola whose focus is at (1,-2) and directrix is the line x+y+3=0 is

Options

  1. A8 2 units
  2. B2 2 units
  3. C2 units
  4. D4 2 units

Correct answer

B. 2 2 units

Step-by-step solution

f ^ (1,-2) x+y+3=0 Distance of focus from Dizectrix =22 array l 1² distance = |1-2+3| 2 = 2 . array Length of L.R =2 2

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