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August 3, 2015

Homework Help: Trig - Identies/equation, please help!

Posted by James on Wednesday, November 12, 2008 at 11:05pm.

2Sin(Θ+47°)=1 ΘЄ[0°, 360°)

What I did:
Sin(Θ+47°)=1/2
Sin 1/2 = Θ+47°
30°+360 = Θ+47°
343° = Θ

Ok, so how do i find the other solutions? In this problem its 103°. I think we were suppose to do something with the graphing calculator and something about calculating the zero. I know how to do that, but i dont know how to make it equal 0 so i could put it in Y1? Any other way, what did i do wrong? Is there a prgm that is avilable for the Ti-83+ that can do these problems?

btw:
Θ = theta

Thanks in advance.

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