Math, asked by uttamds2041, 1 year ago

if x^2+y^2+z^2-2xyz=1 then prove that cos-1x + cos-1y + cos-1z = pi

Answers

Answered by zadcom814
0

fujyhjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj

Similar questions