Question

Calcule o valor de y na expressão:

Answer 1

3.senπ/6 = 3.1/2 = 3/2
4.sen3π/2 = 4(-1) = -4
2sen²π/4 = 2(√2/2)² = 2.2/4 = 4/4 = 1

y = (3/2 - 4)/1

y = [(3 - 8)/2]/1

y = -5/2