Question

porfa ayúdenme es de trigonometría urgente!!!!

Answer 1

${ \frac{3tan(53)+cos(60)+cos^2(45)}{2tan^2(60)+sen(30)+sen^2(45)} }\\\\{ \frac{3( \frac{4}{3})+ \frac{1}{2} +( \frac{1}{\sqrt{2}} )^2}{2(\sqrt{3})^2+\frac{1}{2}+(\frac{1}{\sqrt{2}})^2}}\\\\{ \frac{4+\frac{1}{2}+\frac{1}{2}}{6+\frac{1}{2}+\frac{1}{2}}}\\\\{\boxed{\frac{5}{7}}}\\\\\\{\sqrt{cos^2(60)+4csc(30)+ctg(53)}}\\\\{\sqrt{(\frac{1}{2})^2+4(2)+\frac{3}{4}}}\\\\{\sqrt{\frac{1}{4}+8+\frac{3}{4}}}\\\\{\sqrt{9}}\\\\{\boxed{3}}\\\\\\\\{\frac{(sen(53)+cos(37))^2}{8}}\\\\{\frac{(\frac{4}{5}+\frac{4}{5})^2}{8}}\\\\{\frac{(\frac{8}{5})^2}{8}}\\\\{\frac{\frac{64}{25}}{8}}\\\\{\frac{64}{25}.\frac{1}{8}}\\\\{\boxed{\frac{8}{25}}}$