Exercise ID123

Algebra → Komplex százmok → Komplex számok összeadása-kivonása
[Level: ] [Number of helps: 0] [Number of pictures: 0] [Number of steps: 5] [Number of characters: 0]

Evaluate the following expression:

z=1+i ;   z¯=1-iz-z¯1+z·z¯

z-z¯1+z·z¯ =1+i-1-i1+1+i1-i =1+i-1+i1+12-i2 =2i1+1--1 =23i
z-z¯1+z·z¯=23i

a2-b2=a-ba+b

i=-1 ; i2=-1

Start the solution
Restart the solution
Final solution
Hide the final solution
Entire solution!
Hide the entire solution!
Theory
Hide theory