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If A= [(1,-1),(2,-1)] and B = [(a,1),(b,...

If A= `[(1,-1),(2,-1)]` and B = `[(a,1),(b,-1)] and(A+B)^(2)=A^(2)+B^(2)`, then the values of a and b are

A

a=4,b=1

B

a=1,b=4

C

a=0,b=4

D

a=2,b=4

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The correct Answer is:
B
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PREMIERS PUBLISHERS-MATRICES AND DETERMINANTS-SOLUTION TO EXERCISE 7.5
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  3. If A= [(1,-1),(2,-1)] and B = [(a,1),(b,-1)] and(A+B)^(2)=A^(2)+B^(2),...

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  17. If a ne b, b,c satisfy |(a,2b,2c),(3,b,c),(4,a,b)|=0, then abc =

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  19. If A is a skew symmetric matrix of order n and C is a column matrix of...

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  20. The matrix A satisfying the equation [(1,3),(0,1)] A= [(1,1),(0,-1)] i...

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