[tex](adsbygoogle = window.adsbygoogle || []).push({});

\begin{align*}

\sin^2 \theta + 2 \sin \theta \cos \theta - 3 \cos^2 \theta = 0 \\

(\sin \theta + 3 \cos \theta)(\sin \theta - \cos \theta) = 0 \\

\end{align*}

[/tex]

so,

[tex]

\begin{align*}

\sin \theta = \cos \theta\\

\theta = \frac{\pi}{4} + \pi k, k \epsilon \mathbb{I}

\end{align*}

[/tex]

or

[tex]

\begin{align*}

\sin \theta = -3 \cos \theta\\

\tan \theta = -3\\

\theta = 5.03 + 2\pi k, k \epsilon \mathbb{I}; 1.89 + 2\pi k, k \epsilon \mathbb{I}

\end{align*}

[/tex]

How come this is incorrect?

...argh I can't align it properly :uhh:

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# Homework Help: Another Trig Equation

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