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The length of the latus rectum and equation of the directrix of the parabola y2=−8x
  • a)
    8, x =2
  • b)
    9, y=x+2
  • c)
    7, x=2
  • d)
    6, x=y+2
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The length of the latus rectum and equation of the directrix of the pa...
Given, y2=−8x
Length of the latus rectum = 4a = 8
⇒a=2
Hence, the equation of the directrix is x=2
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The length of the latus rectum and equation of the directrix of the parabolay2=−8xa)8, x =2b)9, y=x+2c)7, x=2d)6, x=y+2Correct answer is option 'A'. Can you explain this answer?
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