How do you simplify (1 + tan x) / (1 - tan x)?

1.	How do you simplify (1 + tan x) / (1 - tan x)?
Answer» Expression(1 + tan x) / (1 - tan x) can be simplified as tan (x + (π / 4)) We can simplify the above expression by usingtangent formulas of trigonometry identities.

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