Prove that (1 – i)n
= 2n for all values of n N
L.H.S = (1 – i)n
= 
= 
Since, 
. = -1
= 
.
Applying 
= 
.
= 
=
L.H.S = R.H.S
Hce proved.
1
Prove that (1 – i)n= 2n for all values of n N
L.H.S = (1 – i)n
=
=
Since, . = -1
= .
Applying
= .
=
=
L.H.S = R.H.S
Hce proved.