{"id":9169,"date":"2012-05-20T23:24:07","date_gmt":"2012-05-20T22:24:07","guid":{"rendered":"https:\/\/www.acasinhadamatematica.pt\/?p=9169"},"modified":"2022-01-14T12:24:01","modified_gmt":"2022-01-14T12:24:01","slug":"forma-trigonometrica-do-produto-de-dois-numeros-complexos","status":"publish","type":"post","link":"https:\/\/www.acasinhadamatematica.pt\/?p=9169","title":{"rendered":"Forma trigonom\u00e9trica do produto de dois n\u00fameros complexos"},"content":{"rendered":"<blockquote>\n<p><strong>Forma trigonom\u00e9trica do produto<\/strong>:<\/p>\n<p style=\"text-align: center;\">Se ${z_1} = {\\rho _1}\\operatorname{cis} {\\theta _1}$ e ${z_2} = {\\rho _2}\\operatorname{cis} {\\theta _2}$ s\u00e3o dois complexos n\u00e3o nulos, ent\u00e3o $${z_1}.{z_2} = {\\rho _1}{\\rho _2}\\operatorname{cis} \\left( {{\\theta _1} + {\\theta _2}} \\right)$$<\/p>\n<\/blockquote>\n<p><!--more--><\/p>\n<p style=\"text-align: center;\"><script 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