Examples -> Geometry -> Trigonometry -> Simplifying trigonometric expressions

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Simplify the following expression: $$\frac{1+ctg2x\xb7ctgx}{tgx+ctgx}$$ |

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Simplify the following expression: $$si{n}^{4}\alpha +co{s}^{2}\alpha +si{n}^{2}\alpha \xb7co{s}^{2}\alpha $$ |

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Simplify the following expression: $${\mathrm{cos}}^{2}x-{\mathrm{cos}}^{4}x+{\mathrm{sin}}^{4}x$$ |

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Simplify the following expression: $${t}{{g}}^{2}{x}{-}{s}{i}{{n}}^{2}{x}$$ |