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cosx+cosy+cosz=0"and sinx+siny+sinz,then...

`cosx+cosy+cosz=0"and sinx+siny+sinz`,then `cos^2((x-y)/2)=`

Answer

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If cosx + cosy + cosz = 0 "and" sinx + siny + sinz =0, "then show that" cos (x-y) + cos(y - z) + cos(z - x) = - 3/2.

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Knowledge Check

  • If cosx+cosy+cosz=sinx+siny+sinz=0" then "cos(x-y)=

    A
    0
    B
    `-(1)/(2)`
    C
    2
    D
    1
  • Similar Questions

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