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hl trigonometric equations

PostPosted: Wed Apr 24, 2013 12:32 pm
by ib231997
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.

Re: hl trigonometric equations

PostPosted: Thu Apr 25, 2013 8:11 pm
by miranda
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!!