-(1/4)cos(2x)

Simple and best practice solution for -(1/4)cos(2x) equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for -(1/4)cos(2x) equation: 


x in (-oo:+oo)

-((1/4)*cos(2*x)) = 0

1/4 = 0

1/4 = 0 // * 4

1 = 0

cos(2*x) = 0

cos(2*x) = 0  <=>  2*x = pi*k_1+pi/2 i k_1 należy do I

t_1 = pi*k_1+pi/2

2*x-t_1 = 0

2*x-t_1 = 0 // + t_1

2*x = t_1 // : 2

x = t_1/2

x = pi*k_1+pi/2/2 i k_1 należy do I

-((1/4)*cos(2*x)) = 0  <=>  1/4 = 0 or -((1/4)*cos(2*x)) = 0  <=>  cos(2*x) = 0

x = pi*k_1+pi/2/2

See similar equations:

| x-3(2x-5)=4/5(3x-4) | | 4=(3/a^2) | | x+2x+123=180 | | 1.5/216 | | 6x+46=3x-19 | | 4y+1=2y+11 | | 216/1.5 | | 11xsquare-18x+7=0 | | 3p-2=40 | | 8x+66=2x+18 | | 7x-41=3x+61 | | 7x-41=3x+41 | | 6x+12=4x+34 | | T^3-24T+20=0 | | 2x=1/3=31/3 | | 5x+118=9x+182 | | 2x+121=7x+206 | | g(g-5)= | | 5(2a+3b)= | | 7x-11=3x+22 | | 5x-2/121 | | x+2+4x+2=x+4+2x | | 5x-2/12 | | 10a-15=6 | | 6x+10y=4505 | | 6x+10y=450 | | (3x-8)+x=48 | | 6(a+3)=0 | | 3/a^2=4 | | 4^6/2^12 | | 3x+4=-8+6x | | 8a^2=48 |

Equations solver categories