# Solving for two unknown angles, from two equations.

**0 = sinA - 1.341sinB** and **2 = cosA + 1.341cosB**

I have made sinB and cosB the subjects for both equations

sinB = sinA/1.341

cosB = (2-cosA)/1,341

I now know that **sin^2 B + cos^2 B = 1**

This then means I square both parts and add them together

I get: 1 = Sin^2 A / 1.798 + 2.224 - cos^2 A / 1.798

I guess I can then multiply both sides by 1.798 and get 1.798 = sin^2 A + 2.622 - cos^2 A

Therefore -0.824 = sin^2 A - cos ^2 A

or 0.824 = cos^2 A - sin^2 A

or 0.824 + sin^2 A = cos^2 A

From here I get stuck and I am not sure that I have not already made a mistake.

Can anyone help please, I know the answer to the angles but I want to sse the full working out.

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