engineering mathematics MCQ #1844

The equation of the chord of contact of the tangents drawn from (2, 3) to the circle x² + y² = 4 is

engineering mathematics MCQ #1844

  1. Question 1

    Q1. The equation of the chord of contact of the tangents drawn from (2, 3) to the circle x² + y² = 4 is

    • A) 2x + 3y = 4
    • B) 2x - 3y = 4
    • C) x + y = 2
    • D) x - y = 2

    Answer: 2x + 3y = 4

    Explanation: Using chord of contact equation: T = 0, where T = xx1 + yy1 - r², so 2x + 3y = 4