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If tan^(-1)(a)/(x)+tan^(-1)(b)/(x)+tan^(...

If `tan^(-1)(a)/(x)+tan^(-1)(b)/(x)+tan^(-1)(c )/(x)+tan^(-1)(d)//(x)=(pi)/(2)`
then `x^(4)-x^(2)(Sigma ab)+abcd=`

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Knowledge Check

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    B
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    C
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    `sqrt(2ab)`

  • If tan^(-1)(a/x) + tan^(-1)(b/x) = pi/2 , then: x=……

    A
    ab
    B
    2ab
    C
    `sqrt(ab)`
    D
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