if AB=[[i,-i],[-i,i]] and B=[[1,-1],[-1,...

if `AB=[[i,-i],[-i,i]] and B=[[1,-1],[-1,1]]`, then show that `A^8=128B`

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HIGHER SECONDARY QUESTION 2018
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If A={:[(i,i),(-i,i)] and B={:[(1,-1),(-1,1)] then show that A^(8)=128 B .

If A=[[i,-i],[-i ,i]] and B=[[1,-1],[-1 ,1]], t hen ,A^8 equals a. 4B b. 128 B c. -128 B d. -64 B

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If A={:((1,i),(-i,1))and B={:((i,-1),(-1,-i)), find AB and BA(i=sqrt(-1)).

If A=[[a+i b, c+i d],[-c+i d, a-i b]] and a^2+b^2+c^2+d^2=1,t h e n ,A^(-1) is equal to a. [[a+i b,-c+i d],[c+i d, a-i b]] b. [[a-i b,-c-i d],[-c-i d, a+i b]] c. [[a+i b,-c-i d],[-c+i d, a-i b]] d. none of these

UNITED BOOK HOUSE-HIGHER SECONDARY QUESTION 2019-EXERCISE

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if AB=[[i,-i],[-i,i]] and B=[[1,-1],[-1,1]], then show that A^8=128B
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