Răspuns :
(1-i)²=1-2i+i²=1-1-2i=-2i
(1-i)^24=[(1-i)²]^12=(-2i)^12=(-2)^12*(i)^12=2^12*(i²)^6=2^12*(-1)^6=2^12=4096
(1-i)^24=[(1-i)²]^12=(-2i)^12=(-2)^12*(i)^12=2^12*(i²)^6=2^12*(-1)^6=2^12=4096
24 = 2 ·12 i² = - 1 ( 1 -i) ²⁴ = [ ( 1 - i ) ² ] ¹² = [ 1 - 2i + i² ] ¹² = [2i ] ¹² = [( 2i) ² ] ⁶ = = [ 2²· i ² ] ⁶ = [ 2² · ( -1) ] ⁶ = [2² ] ⁶ ·[ -1 ] ⁶ = 2 ¹² ∈ R
+ 1
+ 1