math please help

solve
(sq.rt 2) (tanx)(cosx) = tanx

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  1. sqrt2 cos x = 1
    cosx = 1/sqrt2

    x = 45 degrees and 315 degrees

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    posted by drwls
  2. tan x = 0 is also a solution. That leads to two more possible values of x.

    See if you can figure out what they are.

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    posted by drwls

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