Question

(URGENTE)
Resolva a equação: 2sen^2x – 7sen x + 3 = 0, com x [0,π/2]

Answer 1

2sen² x - 7sen x + 3 = 0

sen x' = 3

sen x" = 1/2

sen 30° = sen π/6

x = a + 2kπ
x = π/6 + 2kπ

x = a + 2kπ
x = π - π/6 + 2kπ
x = 5π/6 + 2kπ