GPT

a) \(sin\left(\pi cos2x\right)=1\)

b) \(\left(cos4x-1\right)\left(1+cot^2x\right)=0\)

c) \(\frac{cos2x-1}{1-cosx}=0\)

d) \(\frac{cos2x}{tanx-1}=0\)

GPT

a) \(sinx=-\frac{\sqrt{3}}{2}\) voi \(x\in\left(0;2\pi\right)\)

b) \(2sin2x+1=0\) voi \(0< x< 90^o\)

c) \(2cos\left(x-\frac{\pi}{3}\right)=1\) voi \(-\pi< x< \pi\)

d) \(cos^3x-2cos^2x=0\) voi moi \(x\in\left[0;720^o\right]\)

GPT

a) \(sin2x-cosx=0\)

b) \(\left(2cos\frac{x}{2}-1\right)\left(sin\frac{x}{2}+2\right)=0\)

c) \(\left(\sqrt{3}tanx+1\right)\left(sin^2x+1\right)=0\)

d) \(sinx.cosx.cos2x=0\)

e) \(8cos2x.sin2x.cos4x=-\sqrt{2}\)

GPT

a) \(\left(2sinx-1\right)\left(\sqrt{3}cosx-5\right)=0\)

b) \(sin2x.cos2x.cos4x+\frac{1}{8}=0\)

c) \(sin4x+\sqrt{3}sin2x=0\)

d) \(\left(\sqrt{2}sin2x+2\right)\left(2cosx+\sqrt{2}\right)=0\)