Sin720+cos60-ctg270+sin30

Question

Sin720+cos60-ctg270+sin30

Answer 1

Решение
Sin720+cos60-ctg270+sin30 = sin(360*2) + 1/2 + 1/√3 + 1/2 = 0 + 1 + 1/√3 =
= 1(√3/3) = (3 + √3)/3