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Question Number 77178 by jagoll last updated on 04/Jan/20

$$$$$$given{\cos }^{-1}\left(x\right)+{\cos }^{-1}\left(y\right)+{\cos }^{-1}\left(z\right)=\pi$$$$andx+y+z=\frac{3}{2}$$$$provethatx=y=z.$$

Answered by john santu last updated on 04/Jan/20

Commented by jagoll last updated on 04/Jan/20

$$\mathrm{thanks}\mathrm{you}$$

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