1.

In a triangle ABC we define x=tanB−C2tanA2,y=tanC−A2tanB2 and z=tanAB2tanC2Then the value of x+y+z (in terms of x,y,z) is

Answer»

In a triangle ABC we define

x=tanBC2tanA2,y=tanCA2tanB2 and z=tanAB2tanC2

Then the value of x+y+z (in terms of x,y,z) is





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