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If A=[{:(1,2),(-1,-2):}], B=[{:(2,a),(-1...

If `A=[{:(1,2),(-1,-2):}], B=[{:(2,a),(-1,b):}]` and `(A+B)^(2) =A^(2) + B^(2)`, then find the value of a and b.

Answer

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Knowledge Check

  • If A = [(1,-1),(2,-1)] , B = [(a,1),(b,-1)] and (A + B)^(2) = A^(2) + B^(2) , then the value of a + b is

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  • If A=[(1,-1),(2,1)], B=[(a,1),(b,-1)] and (A+B)^(2)=A^(2)+B^(2)+2AB , then

    A
    `a=-1`
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    `a=1`
    C
    `b=2`
    D
    `b=-2`

  • If A=[(1,-1),(2,-1)] and B=[(1,a),(4,b)] and (A+B)^(2)=A^(2)+B^(2) . Then a and b are respectively

    A
    `1,-1`
    B
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    C
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    D
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