if z=(cosx,sinx) find (z-(1÷z))
Answers
Answered by
3
Step-by-step explanation:
z=cosx+isinx
1/z=cosx-isinx
z-1/z=cosx+isinx-(cosx-isinx)
= cosx+isinx-cosx+isinx
=2isinx
Similar questions