The sum of the roots of the equation:

http://www.tutorbrasil.com.br/forum/...577ad6e0b4.gif

belonging to the interval $\displaystyle [0;2\pi]$ is ?

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- Jun 5th 2009, 07:39 AMApprentice123Trigonometric equationsThe sum of the roots of the equation:

http://www.tutorbrasil.com.br/forum/...577ad6e0b4.gif

belonging to the interval $\displaystyle [0;2\pi]$ is ?

- Jun 6th 2009, 05:11 AMstapel
Does "tgx" mean "tan(x)"? What does "sen" mean? Does "2x" mean "an argument of 2x", or "squared, of x"?

What have you tried so far? Where are you stuck?

Thank you! (Wink)