cos^2x-11cosx-10=0

Simple and best practice solution for cos^2x-11cosx-10=0 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-11cosx-10=0 equation:


Simplifying
cos2x + -11cosx + -10 = 0

Reorder the terms:
-10 + -11cosx + cos2x = 0

Solving
-10 + -11cosx + cos2x = 0

Solving for variable 'c'.

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

Add '10' to each side of the equation.
-10 + -11cosx + 10 + cos2x = 0 + 10

Reorder the terms:
-10 + 10 + -11cosx + cos2x = 0 + 10

Combine like terms: -10 + 10 = 0
0 + -11cosx + cos2x = 0 + 10
-11cosx + cos2x = 0 + 10

Combine like terms: 0 + 10 = 10
-11cosx + cos2x = 10

Reorder the terms:
-10 + -11cosx + cos2x = 10 + -10

Combine like terms: 10 + -10 = 0
-10 + -11cosx + cos2x = 0

The solution to this equation could not be determined.

See similar equations:

| 3(2x-1)=-4(-3x+2) | | -(2x-3)-3x=5-7x | | 3x+5x-4t= | | 5x+6m-2m= | | M+3M-2k= | | 36z=252 | | 0.6x+0.8y=30 | | 5n-10=3n | | -(2x-3)-3x=5-7x | | -23=-7x-9 | | 5x-3=-2x+11 | | -29.7-z=15.2 | | -10-x=-2 | | r^2+r-300=0 | | 4/3*3.14*(3)3 | | -0.2+z=0.8 | | (X+14)(2X+5)+(X+14)(8X+0)=0 | | F(x)=3x^4-2x^2 | | logx^100=-2 | | 0=4.9x^2-4x-5 | | x-0.3x=100 | | x^4-5x^3+2x-3=y | | -5y=-3x-26 | | 10x^2-28x-140=0 | | x+1,25x+1,2x=27600 | | x+1,25x+1,20x=27600 | | x+1,25+x+1,20+x=27600 | | x-25+x+20+x=27600 | | x-25-x+20+x=27600 | | x-25-x-20+x=27600 | | x-25-x-20-x=27600 | | x+0,25+x+0,20+x=27600 |

Equations solver categories