Question

sen 3x = Sen x + Sen 5x​

Answer 1

Respuesta:

sin(3 x) = sin(x) + sin(5 x)

sin(x) (2 cos(2 x) + 1) = 4 sin(π/4 - x) sin(x) sin(x + π/4) (2 cos(2 x) + 1)

3 sin(x) cos^2(x) - sin^3(x) = sin^5(x) + sin(x) + 5 sin(x) cos^4(x) - 10 sin^3(x) cos^2(x)

1/2 i e^(-3 i x) - 1/2 i e^(3 i x) = 1/2 i e^(-i x) - 1/2 i e^(i x) + 1/2 i e^(-5 i x) - 1/2 i e^(5 i x)

Solución:

x = 2 π n, n element Z

x = 2 π n + π, n element Z

x = 2/3 (3 π n - π), n element Z

x = 2/3 (3 π n + π), n element Z

x = 1/3 (6 π n - π), n element Z

x = 0

Explicación paso a paso:

SALUDOS♥.