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Use standard identities to express 
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#1
Apr412, 08:08 PM

P: 45

1. The problem statement, all variables and given/known data
Use standard identities to express sin(x+pi/3) in terms of sin x and cos x 2. Relevant equations sin(a+b)=sinAcosB+sinBcosA 3. The attempt at a solution sin(x)cos(pi/3)+sin(pi/3)cos(x) 0.5sinx + 0.8660cosx I'm just not sure if i need to simplify it even further and hopefully I'm on the right track. Thanks 


#2
Apr412, 08:49 PM

HW Helper
P: 6,202

That should be fine. I would just express 0.866 as √3/2 as that is an exact value whilst 0.866 is just an approximation.



#3
Apr412, 08:50 PM

P: 18

that seems right to me. However I'd keep sin(π/3) as [itex]\frac{\sqrt{3}}{2}[/itex].
Edit: I didn't see rock.freak667's reply. 


#4
Apr412, 10:59 PM

P: 45

Use standard identities to express
thanks for the response :)



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