If `A=[(i,-i),(-i,i)]` and `B=[(1,-1),(-1,1)]`, then `A^(8)` equals

If A=[i-i-i i]a n dB=[1-1-1 1],t h e nA^8 equals 4B b. 128 B c. -128 B d. -64 B

If A + I = [(3,-2),(4,1)] , then (A+I) (A-I) is equal to

If a = 1 + i , then a^(2) equals

(1+3i)(1-3i)

If z=((1+i)/(1-i))^(9) find z+(1)/(z)

(a) If A=((4,2),(-1,x)) and such that (A-2I)(A-3I)=0. find the value of x. (b) If A_(i),B_i,C_(i) are the cofactors of a_(i),b_(i),c_(i) , respectively, i=1 to 3 in |A|=|(a_(1),b_(1),c_(1)),(a_(2),b_(2),c_(3)),(a_(3),b_(3),c_(3))| , show that |(A_(1),B_(1),C_(1)),(A_(2),B_(2),C_(2)),(A_(3),B_(3),C_(3))|=|A|^(2) .

if A=[[i,0] , [0,i]] where i=sqrt(-1) and x epsilon N then A^(4x) equals to:

(1+i)^(16)+(1-i)^(16) equals

If ((1+i)/(1-i))^(x)=1 , then