Question

Evaluate the following.
$2{\tan }^2{45}^o+{\cos }^2{30}^o$

Answer 1

$2{\tan }^2{45}^o+{\cos }^2{30}^o$

$\Rightarrow 2(1{)}^2+{\left(\frac{\sqrt{3}}{2}\right)}^2$

$\Rightarrow 2+\frac{3}{4}=\frac{11}{4}$.