Verify identity (sec x – csc x) / sec x + csc x = (tan x – 1) / (tan x…

Verify identity (sec x – csc x) / sec x + csc x = (tan x – 1) / (tan x…

Verify identity (sec x – csc x) / sec x + csc x = (tan x – 1) / (tan x + 1)

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