Question

sin²30+cos²30/ tan 45 + tan²30



​

Answer 1

Answer:

$( {1 \div 2})^{2} + ( { \sqrt{3} \div 2 })^{2} \div 1 + ( {1 \div \sqrt{3} }) ^{2} \\ = 1 \div 4 + 3 \div 4 + 1 \div 3 \\ = 4 \div 4 + 1 \div 3 \\ = 1 + 1 \div 3 \\ = 4 \div 3$