SATHEE: Complex Numbers And Quadratic Equations question 475

Complex Numbers And Quadratic Equations question 475

Question: If $ \frac{z-\alpha }{z+\alpha }(\alpha \in R) $ is a purely imaginary number and $ | z |=2, $ then a value of $ \alpha $ is

Solution:

Answer: 2

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Complex Numbers And Quadratic Equations question 475

Question: If $ \frac{z-\alpha }{z+\alpha }(\alpha \in R) $ is a purely imaginary number and $ | z |=2, $ then a value of $ \alpha $ is

Solution:

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