engineering mathematics MCQ #1840

The equation of the tangent to the circle x² + y² = 4 at (2, 0) is

engineering mathematics MCQ #1840

  1. Question 1

    Q1. The equation of the tangent to the circle x² + y² = 4 at (2, 0) is

    • A) x = 2
    • B) y = 0
    • C) x + y = 2
    • D) x - y = 2

    Answer: x = 2

    Explanation: The tangent is perpendicular to the radius, so the slope of the tangent is undefined, hence the equation is x = 2