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Math Help - solve this trig equation!!!!!!!!

  1. #1
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    Exclamation solve this trig equation!!!!!!!!

    (tan x)^3 + (tan x)^2 - 3(tan x) - 3 = 0
    Last edited by jennifernghi; April 23rd 2014 at 04:37 PM.
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  2. #2
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    Re: solve this trig equation!!!!!!!!

    Quote Originally Posted by jennifernghi View Post
    (tan x)^3 + (tan x)^2 - 3(tan x) - 3 = 0
    What have you tried so far?

    -Dan
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  3. #3
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    Re: solve this trig equation!!!!!!!!

    Hello, Jennifer!

    \tan^3\!x + \tan^2\!x - 3\tan x - 3 \:=\: 0

    Factor: . \tan^2\!x(\tan x + 1) - 3(\tan x + 1) \:=\:0

    Factor: . (\tan x + 1)(\tan^2x-3) \:=\:0

    Can you continue?

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