trig

tanx=cotx

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asked by Joe
  1. Both cot x and tan x must either be 1 or -1, since tan x = 1/cot x

    tan^2 x = 1
    tan x = +/-1
    tan 1 = 1 at 45 and 225 degrees. tan x = -1 at 135 and 315 degrees.

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    posted by drwls

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