If cos^(-1)x+cos^(-1)y+cos^(-1)=pi, prov...

If `cos^(-1)x+cos^(-1)y+cos^(-1)=pi`, prove that `x^2+y^2+z^2+2x y z=1.`

If cos^(-1)x+cos^(-1)y+cos^(-1)=pi, prove that x^2+y^2+z^2+2x y z=1.
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If cos^-1 x+cos^-1 y+cos^-1 z=pi and x+y+z= 3/2, then prove that x=y=...
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यदि cos^(-1)x + cos^(-1) y+ cos^(-1) z = pi, तो सिद्ध कीजिए कि x^(...
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यदि "cos"^(-1)x+"cos"^(-1)y+"cos"^(-1)z=pi तो सिद्ध कीजिए कि x^(2)+y^(...
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यदि cos^(-1)x+cos^(-1)y+cos^(-1)z=pi, सिद्ध कीजिए कि x^(2)+y^(2)+z^(2...
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यदि cos^(-1)x+cos^(-1)y+cos^(-1) z = pi, तब सिद्ध कीजिए - x^(2)+y^(2)+...
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If cos^(-1) x + cos^(-1) y + cos^(-1) z = pi" , prove that " x^(2) + ...
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if cos^(-1)x+cos ^(-1)y+cos^(-1) z=pi prove that x^(2) +y^(2)+z...
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If cos^(-1)x+cos^(-1)y+cos^(-1)z=pi,t h e n x^2+y^2+z^2+2x y z=1 2...
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