Find all the solutions to the equation (values of x). 7sin2(x) - 14sin(x) + 2 = -5

Answer:x = (1 + 4n)π/2, where n = any integer  Step-by-step explanation:7sin²x -14sinx + 2 = -5 Add 5 to each side:            7sin²x -14sinx + 7 = 0 Divide each side by 7:        sin²x -   2sinx + 1 = 0 Factor the perfect square:     (sinx -1)(sinx -1) = 0 Solve:                                                   sinx - 1 = 0 Add 1 to each side:                                 sin x = 1 Take the arcsin of each side:                      x = π/2 However, this is only one solution. sinx is a periodic function, and π/2 ± 2πn is also a solution. π/2 ± 2πn = π/2(1 ± 4n) We can write the general solution as x = (4n + 1)π/2 where n = any integer.