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The equation of one of the common tangents to the parabola y2 = 8x and x2 + y2 - 12x + 4 = 0 is
  • a)
    y = –x + 2
  • b)
    y = x – 2
  • c)
    y = x + 2
  • d)
    None of these
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The equation of one of the common tangents to the parabola y2 = 8x and...
Any tangent to parabola y2 = 8x is

It touches the circle x2 + y2 - 12x + 4 = 0 , if the length of perpendicular from the centre (6, 0) is equal to radius

⇒ (3m2 + 1)2 = 8(m4 + m2)
⇒ m4 – 2m2 + 1 = 0
⇒ m = ±1
Hence, the required tangents are y = x + 2 and y = –x – 2.
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Most Upvoted Answer
The equation of one of the common tangents to the parabola y2 = 8x and...
The equation of the common tangent to the parabola y^2 = 8x and x^2 + y^2 - 12x - 4 = 0 is:

y = 2x - 4
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The equation of one of the common tangents to the parabola y2 = 8x and x2 + y2 - 12x + 4 = 0 isa)y = –x + 2b)y = x – 2c)y = x + 2d)None of theseCorrect answer is option 'C'. Can you explain this answer?
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The equation of one of the common tangents to the parabola y2 = 8x and x2 + y2 - 12x + 4 = 0 isa)y = –x + 2b)y = x – 2c)y = x + 2d)None of theseCorrect answer is option 'C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about The equation of one of the common tangents to the parabola y2 = 8x and x2 + y2 - 12x + 4 = 0 isa)y = –x + 2b)y = x – 2c)y = x + 2d)None of theseCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The equation of one of the common tangents to the parabola y2 = 8x and x2 + y2 - 12x + 4 = 0 isa)y = –x + 2b)y = x – 2c)y = x + 2d)None of theseCorrect answer is option 'C'. Can you explain this answer?.
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