Question

Can anyone please help me by solving: 3sinx - cosx = 3

Answer 1

please I can rewrite your equation, as follows, namely I substitute sin x with:
\[\sqrt{1-(\cos x)^{2}}\], so:
\[3\sqrt{1-(\cos x)^{2}}=3+\cos x\]
is it clear, please?

Answer 2

since 3 sin x=3+cos x