MATHEMATICS · Single correct · CBSE · Mathematics · Complex Numbers and Quadratic Equations · Complex Numbers and Quadratic Equations
Problem
Consider two complex number z and w satisfying ∣z∣=1 and ∣w−2∣+∣w−4∣=2 . Then which of the following statement(s) is/are correct?
(A) Re(zw) can never exceed 4.
(B) If arg(z)=arg(w) , then ∣z+2∣ is equal to 3.
(C) The minimum value of ∣z−w∣ is equal to 2.
(D) The minimum value of ∣z−w∣ is equal to 6.