- #1
Mohsin Hussain
- 2
- 0
1)If a= cosα + i sinα and the equation az2 + az +1 =0 has a pure imaginary root, then tanα=?
2) cosα+isinα=eiα , quadratic formula
3) What i tried to do was,i put a constant real number and tried to solve it and used demoivres theorem, although the answer is getting weirder and weirder.
2) cosα+isinα=eiα , quadratic formula
3) What i tried to do was,i put a constant real number and tried to solve it and used demoivres theorem, although the answer is getting weirder and weirder.