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Popular >

-4cos^2(x)+6cos(x)=2

Solución

- 4 cos^{2} (x) + 6 cos (x) = 2

Solución

x = \frac{π}{3} + 2 πn, x = \frac{5 π}{3} + 2 πn, x = 2 πn

+1

Pasos de solución

- 4 cos^{2} (x) + 6 cos (x) = 2

Usando el método de sustitución

cos (x) = \frac{1}{2}, cos (x) = 1

cos (x) = \frac{1}{2} : x = \frac{π}{3} + 2 πn, x = \frac{5 π}{3} + 2 πn

cos (x) = 1 : x = 2 πn

Combinar toda las soluciones

x = \frac{π}{3} + 2 πn, x = \frac{5 π}{3} + 2 πn, x = 2 πn

Ejemplos populares

sec (θ) = - \frac{4}{3}

tan(2x)=tan(2018)

tan (2 x) = tan (201 8^{\circ})

-sin(x)+2cos^2(x)=1

- sin (x) + 2 cos^{2} (x) = 1

6/pi-4sin(2x)=0

\frac{6}{π} - 4 sin (2 x) = 0

sin (t) = \frac{1}{5}