hl trigonometric equations

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hl trigonometric equations

Postby ib231997 » Wed Apr 24, 2013 12:32 pm

2sin(x+(π)/(3))+2sin(x-(π)/(3))=√(3)

would someone please help me with this. and its the 22/7 pie ..the wierd symbol.
ib231997
 
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Re: hl trigonometric equations

Postby miranda » Thu Apr 25, 2013 8:11 pm

ib231997 wrote:2sin(x+(π)/(3))+2sin(x-(π)/(3))=√(3)

would someone please help me with this. and its the 22/7 pie ..the wierd symbol.



You have to use the following trigonometric identities:



and



So

where k takes integer values.

and



Therefore, your equation now looks like this









or


Hope these help!!
miranda
 
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Joined: Mon Jan 28, 2013 8:03 pm


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