# Trig help

• October 22nd 2012, 12:02 PM
MMCS
Trig help
Find all of the solutions of the equation

http://place32.placementtester.com:8...hoecfdafjf.gif

where http://place32.placementtester.com:8...kbidghhmca.gif

Need to answer a similar question on this tonight for an assesment, but have no idea how to do it, having only dealt with single term trig equations also without powers. Any help would be appreciated

Thanks
• October 22nd 2012, 12:09 PM
MarkFL
Re: Trig help
Hint: treat it like a quadratic equation. Remember to use the identity

$\sin(180^{\circ}-x)=\sin(x)$

to get all valid roots.
• October 22nd 2012, 12:15 PM
MMCS
Re: Trig help
Thanks for posting, what will i do with the 5.232 if i try to factorise it, seems it would make it quite messy
• October 22nd 2012, 01:05 PM
MarkFL
Re: Trig help