Question

Evaluate the following : 2tan 45º + cos²30° - sin²60°.​

Answer 1

$\tt \huge \red{answer : } \\ \\ \sf \huge \: 2 \: tan \: 45 \degree \: + {cos}^{2} 30 \degree \: - {sin}^{2} 60 \degree \: \\ \\ \sf \huge \implies \: 2(1) + {( \frac{ \sqrt{3} }{2} })^{2} - {( \frac{ \sqrt{3} }{2} })^{2} \\ \\ \sf \huge \implies \: 2 + \frac{3}{4} - \frac{3}{4} \\ \\ \sf \huge \implies \: 2 + 0 \\ \\ \sf \huge \implies \: 2$