`(1+iota)^2` is equal to

Evaluate : (-5iota) times ( iota/8 ) is equal to

Find sqrt(iota) times sqrt(-iota) is equal to

(1-a)(1+a+a^(2))+(1+a)(1-a+a^(2)) is equal to

If ( 1 - iota ) x + ( 1 + iota ) y = 1 - 3 iota , then ( x ,y ) is equal to ( a )   ( 2 , -1 )   ( b )   ( -2 , 1 )   ( c )  ( -2 , -1 )  ( d )  ( 2, 1 )

((-1+iota sqrt(3))/(2))^(-8)+((-1+iota sqrt(3))/(2))^(-8) is equal to

[ (1)/(2) 1] [ 2,1,-1] is equal to