Формулаҳои мувофиқоварии функсияҳои тригонометрӣ

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 $$ sin $$$$ cos $$$$ tg $$$$ ctg $$
$$-\alpha$$$$ -sin\alpha $$$$ cos\alpha $$$$ -tg\alpha $$$$ -ctg\alpha $$
$$\pi-\alpha$$$$ sin\alpha $$$$ -cos\alpha $$$$ -tg\alpha $$$$ -ctg\alpha $$
$$\pi+\alpha$$$$ -sin\alpha $$$$ -cos\alpha $$$$ tg\alpha $$$$ ctg\alpha $$
$$\frac{\pi}{2}-\alpha$$$$ cos\alpha $$$$ sin\alpha $$$$ ctg\alpha $$$$ tg\alpha $$
$$\frac{\pi}{2}+\alpha$$$$ cos\alpha $$$$ -sin\alpha $$$$ -ctg\alpha $$$$ -tg\alpha $$
$$\frac{3\pi}{2}-\alpha$$$$ -cos\alpha $$$$ -sin\alpha $$$$ ctg\alpha $$$$ tg\alpha $$
$$\frac{3\pi}{2}+\alpha$$$$ -cos\alpha $$$$ sin\alpha $$$$ -ctg\alpha $$$$ -tg\alpha $$