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I have been trying to solve some mechanics problems and I can come up with the right equation, but I don't know how to solve it...

For example:

490.5cos(theta) - 3600cos(theta)sin(theta) + 1800sin(theta) = 0

i need to solve for theta here

its one equation and one unknown, which means it is solvable..

but how?

thanks

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# Solving equations in sin and cos theta

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