Solve each equation for $\displaystyle 0 \leq \theta \leq 360$

$\displaystyle 3sinx = 2cos^{2}x$

The answers are:

30 and 150 degrees

Nevermind, solved it

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- Nov 21st 2007, 02:18 PMMacleef[Urgent] Solving Trig Equations
Solve each equation for $\displaystyle 0 \leq \theta \leq 360$

$\displaystyle 3sinx = 2cos^{2}x$

The answers are:

30 and 150 degrees

Nevermind, solved it - Nov 21st 2007, 02:32 PMKrizalid
- Nov 21st 2007, 02:34 PMMacleef
- Nov 21st 2007, 02:43 PMKrizalid
You forgot a 2.

Now, can you solve the remaining problem? - Nov 21st 2007, 02:44 PMPlato
Can you solve $\displaystyle 2z^2 + 3z - 1 = 0$?

Then let $\displaystyle \sin (x) = z$. - Nov 21st 2007, 02:46 PMMacleef
- Nov 21st 2007, 02:50 PMMacleef
- Nov 21st 2007, 03:11 PMPlato