A sin (Θ) + B Cos (Θ) = A2+B2+C2-D2, finding Θ?

[david2004]

Hello All,

I do not know much about trigonometry and my maths is pretty bad. I need to find Θ given the following:
X sin (Θ) + Y Cos (Θ) = X²+Y²+A²-B²

Could you please help me with this please?


Thank you.

David

 

[Deleted member 4993]

Hello All,

I do not know much about trigonometry and my maths is pretty bad. I need to find Θ given the following:
X sin (Θ) + Y Cos (Θ) = X²+Y²+A²-B²

Could you please help me with this please?


Thank you.

David

If that is so - why have you been asked to solve this problem?

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