por adauto martins » Sex Abr 09, 2021 17:16
por adauto martins » Sex Abr 09, 2021 17:52
![{sena}^{2}+cosa^2=1\Rightarrow cosa=\sqrt[]{1-sena^2}](/latexrender/pictures/623221b1da2757cdf4e5b4f4bfe6852d.png "{sena}^{2}+cosa^2=1\Rightarrow cosa=\sqrt[]{1-sena^2}")
![cosa=\sqrt[]{1-(3/5)^2}=\sqrt[]{16/25}=4/5](/latexrender/pictures/3ac3fc7b9e5b3fecc329be2c4087f3b4.png "cosa=\sqrt[]{1-(3/5)^2}=\sqrt[]{16/25}=4/5")
![senb=\sqrt[]{1-(4/7)^2}=\sqrt[]{33/49}=\sqrt[]{33}/7](/latexrender/pictures/6fb31266a22e8524bc93b248483634ff.png "senb=\sqrt[]{1-(4/7)^2}=\sqrt[]{33/49}=\sqrt[]{33}/7")
![tg(a+b)=(tga+tgb)/(1-tga.tgb)=((sena/cosa))+(senb/cosb))/(1-(sena/cosa).(senb/cosb))=((3/5)/(4/5))+((\sqrt[]{33}/7)/(4/7))/(1-((3/5)/(4/5).(\sqrt[]{33}/7)/(4/7))=](/latexrender/pictures/bc846201ea3a481466e4735ba6075e4e.png "tg(a+b)=(tga+tgb)/(1-tga.tgb)=((sena/cosa))+(senb/cosb))/(1-(sena/cosa).(senb/cosb))=((3/5)/(4/5))+((\sqrt[]{33}/7)/(4/7))/(1-((3/5)/(4/5).(\sqrt[]{33}/7)/(4/7))=")
![((3/5)/(4/5))+((\sqrt[]{33}/7)/(4/7))/(1-((3/5)/(4/5).(\sqrt[]{33}/7)/(4/7))](/latexrender/pictures/ef6ac7cf5fd971e4b0992b3bce85ee3b.png "((3/5)/(4/5))+((\sqrt[]{33}/7)/(4/7))/(1-((3/5)/(4/5).(\sqrt[]{33}/7)/(4/7))")
![=((3/4)+(\sqrt[]{33}/7)/(1-(3.(\sqrt[]{33}))=(84+\sqrt[]{33})/(28.(1-3.\sqrt[]{33}))](/latexrender/pictures/f27065bcab70212b5524ea91ef88136e.png "=((3/4)+(\sqrt[]{33}/7)/(1-(3.(\sqrt[]{33}))=(84+\sqrt[]{33})/(28.(1-3.\sqrt[]{33}))")
por adauto martins » Sáb Abr 10, 2021 16:40
![4.(3+\sqrt[]{33})/(16-3.\sqrt[]{33})](/latexrender/pictures/f31f62a88949a9637f0b08daf253fc83.png "4.(3+\sqrt[]{33})/(16-3.\sqrt[]{33})")
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![\frac{\sqrt[]{\sqrt[4]{8}+\sqrt[]{\sqrt[]{2}-1}}-\sqrt[]{\sqrt[4]{8}-\sqrt[]{\sqrt[]{2}-1}}}{\sqrt[]{\sqrt[4]{8}-\sqrt[]{\sqrt[]{2}+1}}}](/latexrender/pictures/981987c7bcdf9f8f498ca4605785636a.png "\frac{\sqrt[]{\sqrt[4]{8}+\sqrt[]{\sqrt[]{2}-1}}-\sqrt[]{\sqrt[4]{8}-\sqrt[]{\sqrt[]{2}-1}}}{\sqrt[]{\sqrt[4]{8}-\sqrt[]{\sqrt[]{2}+1}}}")
![\sqrt[]{2}](/latexrender/pictures/f21662d1cabab6e8b273a4b6f1cd663a.png "\sqrt[]{2}")
(dica : igualar a expressão a 
e elevar ao quadrado os dois lados)