The radii of two circles with centres C₁ and C₂ are r₁ and r₂ respectively. If the distance between their centres is equal to r₂ − r₁, how many common tangents can be drawn to both circles?

Subject: Mathematics | Topic: Trigonometry | Difficulty: MEDIUM

Options

  1. (A) 2
  2. (B) 3
  3. (C) 1
  4. (D) 0

Verified Answer

Option (C): 1


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