
Grade 12th passEngineering Entrance Exams
z is a complex number such that z+(1/z)=2cos5 , 5 is in degree then the value of z1200 +(1/z1200) +1 is equal to - 1
- -1
- 3(1/2)+1
- 0
z is a complex number such that z+(1/z)=2cos5 , 5 is in degree then the value of z1200 +(1/z1200) +1 is equal to
- 1
- -1
- 3(1/2)+1
- 0





