es

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

6cos(480)

Solución

6 cos (48 0^{\circ})

Solución

- 3

Pasos de solución

6 cos (48 0^{\circ})

Re-escribir usando identidades trigonométricas:

cos (48 0^{\circ}) = - \frac{1}{2}

cos (48 0^{\circ})

cos (48 0^{\circ}) = cos (12 0^{\circ})

cos (48 0^{\circ})

Reescribir

48 0^{\circ}

como

36 0^{\circ} + 12 0^{\circ}

= cos (36 0^{\circ} + 12 0^{\circ})

Utilizar la periodicidad de

cos

:

cos (x + 36 0^{\circ}) = cos (x)

cos (36 0^{\circ} + 12 0^{\circ}) = cos (12 0^{\circ})

= cos (12 0^{\circ})

= cos (12 0^{\circ})

Utilizar la siguiente identidad trivial:

cos (12 0^{\circ}) = - \frac{1}{2}

cos (12 0^{\circ})

cos (x)

tabla de valores periódicos con

36 0^{\circ} n

intervalos:

x 0 3 0^{\circ} 4 5^{\circ} 6 0^{\circ} 9 0^{\circ} 12 0^{\circ} 13 5^{\circ} 15 0^{\circ} cos (x) 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} x 18 0^{\circ} 21 0^{\circ} 22 5^{\circ} 24 0^{\circ} 27 0^{\circ} 30 0^{\circ} 31 5^{\circ} 33 0^{\circ} cos (x) - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2} 0 \frac{1}{2} \frac{2}{2} \frac{3}{2}

= - \frac{1}{2}

= - \frac{1}{2}

= 6 (- \frac{1}{2})

Simplificar

6 (- \frac{1}{2}) : - 3

6 (- \frac{1}{2})

Quitar los parentesis:

(- a) = - a

= - 6 \cdot \frac{1}{2}

Multiplicar fracciones:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= - \frac{1 \cdot 6}{2}

Multiplicar los numeros:

1 \cdot 6 = 6

= - \frac{6}{2}

Dividir:

\frac{6}{2} = 3

= - 3

= - 3

Ejemplos populares

2 - sin (π)

((7.51)^2*sin(2*20))/(12.08)

\frac{( 7.51 ) ^{2} \cdot sin ( 2 \cdot 20 )}{12.08}

- 3 cos (\frac{3 π}{4})

(986)/(tan(36))

\frac{986}{tan ( 3 6 ^{\circ} )}

(cos(0)pi)^1ln(cos(0)pi)

(cos (0) π)^{1} ln (cos (0) π)