Question

2cot 60° +3 sin² 30° + 2cos² 90°

Answer 1

$\cot(60) = 1 \div \sqrt{3} \\ \sin(30) = 1 \div 2 \\ \cos(90) = 0 \\ 2 \cot(60) + 3 \sin^{2}{30} + 2 \cos ^{2} (90) \\ 2 \div \sqrt{3} + 3 \times 1 \div 4 + 0 \\ 2 \div \sqrt{3} + 3 \div 4 \\ 8 + 3 \sqrt{3} \div 4 \sqrt{3}$