1. (r₂ - r₁)/(r₁ - r₂)
  2. (r₂ . r₁)/(r₂ - r₁)
  3. (r₁ + r₂)/(r₁ . r₂)
  4. (r₁ . r₂)/(r₁ + r₂)
4 views

1 Answers

Answer: Option 2

4 views

Related Questions