If sin(y+z-x),sin(z+x-y), sin(x+y-z) are in A.P. prove that tanx,tany,tanz are also in A.P.

If sin(y+z-x),sin(z+x-y), sin(x+y-z) are in A.P. prove that tanx,tany,

1.	If sin(y+z-x),sin(z+x-y), sin(x+y-z) are in A.P. prove that tanx,tany,tanz are also in A.P.
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