Question

решите плиииз..
3sin pi/6+2cos pi+ctg^2 pi/6

Answer 1

3sin pi/6+2cos pi+ctg^2 pi/6 = 3 * 1/2 + 2 * (-1) + (sqrt(3))^2 = 3/2 - 2 + 3= 3/2 +1 = 5/2