JEE Main 2019 Mathematics question
Let be a root of the quadratic equation, . If , then arg z is equal to:
Answer: (D)
Solution
⇒ z = 3 + 6i − 3i = 3 + 3i.
Let be a root of the quadratic equation, . If , then arg z is equal to:
⇒ z = 3 + 6i − 3i = 3 + 3i.