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I cant find theta. Anyone help me out here?

x=theta

I've tried making F_{ab}=(160cosx)/cos40

Then plugging it in into the second equation, we get

160cosxtan40+160sinx-200=0

160(cosxtan40+sinx)=200

cosxtan40+sinx=1.25

Is there a trig identity here? Far as I can get.

I also tried

cosx=(F_{ab}cos40)/160

sinx=200-(F_{ab}sin40)

Then tanx= [200/(F_{a}bsin40)]-tan40, but no way to eliminate F_{ab}. Or at least I can't.

Thanks in advance.

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# Homework Help: I cant find theta

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