Help with trig and radians

Jul 2010
6
0
Fidn all the values of θ with θ_< θ< 2pi such that sin(3θ)= -0.5
 
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Ackbeet

MHF Hall of Honor
Jun 2010
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Two questions:

1. Is that \(\displaystyle 0<\theta<2\pi\)?
2. What have you done so far?
 
Jul 2010
6
0
1. Yep that's right.
2. I haven't done anything yet.
 

Ackbeet

MHF Hall of Honor
Jun 2010
6,318
2,433
CT, USA
Ok. You need to show the initiative on this forum. We'll help you get unstuck, but the rule is that people asking for help basically have to do the work. Otherwise, we're not helping you understand. So, show us some work, and we'll help you get unstuck.
 
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Jul 2010
6
0
I honestly have no clue what to do, or where to start from to solve this problem.
 

Ackbeet

MHF Hall of Honor
Jun 2010
6,318
2,433
CT, USA
Ok. Try plotting the function over the region indicated, and see where that leads you.
 

Ackbeet

MHF Hall of Honor
Jun 2010
6,318
2,433
CT, USA
Plotting, graphing, whatever. Use a calculator or a computer to show a graph of the function over the interval from \(\displaystyle 0\) to \(\displaystyle 2\pi\).
 
Jul 2010
6
0
I haven't got a calculator or computer program that can do this.