\(3\left|sinx\right|+cosx=2\)

\(16cosxcos\left(x+\frac{2\Pi}{3}\right)cos\left(x-\frac{2\Pi}{3}\right)cos\left(3x+\frac{2\Pi}{3}\right)cos\left(3x-\frac{2\Pi}{3}\right)=sin9x\)

sin⁶x+cos⁶x+cos4x=2

\(2^{2x+1}+3^{4x+1}=9^{5x}+2^{x+2}\)

\(\sqrt[4]{2x+1}+\sqrt[4]{1-x}=\sqrt[4]{x+2}\)

\(2^{2x+1}+3^{4x+1}=9^{5x}+2^{x+2}\)

\(2\sqrt{\frac{x}{x^2+3}}=\frac{1+2\sqrt{1-x}}{1+\sqrt{1-x^2}}\)