cos^2x-3cosx=-2

Simple and best practice solution for cos^2x-3cosx=-2 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 cos^2x-3cosx=-2 equation: 


Simplifying
cos2x + -3cosx = -2

Reorder the terms:
-3cosx + cos2x = -2

Solving
-3cosx + cos2x = -2

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Reorder the terms:
2 + -3cosx + cos2x = -2 + 2

Combine like terms: -2 + 2 = 0
2 + -3cosx + cos2x = 0

The solution to this equation could not be determined.

See similar equations:

| -10x+12x-x=-10 | | 6n=30+4(n-4) | | 2x^(2/3)-5x^(1/3)=0 | | 2(m+3)-7=11 | | 33/4÷11/2 | | 8x-10y=-10 | | 8+w-4x=0 | | 15z/m=-2w | | y+-3x=-28 | | 5k+k-4k+3=9 | | 2(3x)+6=15 | | 82=5w+12 | | (-x+-3)-4(x-1)=14 | | 3(x+8)=4-2(x+2) | | 4x(x+4)(x-4)=0 | | 12.3-12.8/12.8 | | 6m-4=52 | | 3x+5x=-5 | | Y-2=-1/2(x-4) | | 11r+4r+5r-19r=14 | | 5squared=5y | | 4n-7=-155 | | 12.3-12.8/12.8*100 | | 2a-7=39 | | 2/3x-3x-22.5= | | 4r+5=-95 | | 29=50n | | y=(12-x)/(x-7) | | 3y/4=4y-5 | | 4x-2.2x= | | 30+x=48.90 | | -5/2=3/7u-8/3 |

Equations solver categories