cos*2x+(3*cosx)-1=0

Simple and best practice solution for cos*2x+(3*cosx)-1=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+(3*cosx)-1=0 equation:


Simplifying
cos * 2x + (3cosx) + -1 = 0

Reorder the terms for easier multiplication:
2cos * x + (3cosx) + -1 = 0

Multiply cos * x
2cosx + (3cosx) + -1 = 0

Reorder the terms:
-1 + 2cosx + (3cosx) = 0

Combine like terms: 2cosx + (3cosx) = 5cosx
-1 + 5cosx = 0

Solving
-1 + 5cosx = 0

Solving for variable 'c'.

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

Add '1' to each side of the equation.
-1 + 1 + 5cosx = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 5cosx = 0 + 1
5cosx = 0 + 1

Combine like terms: 0 + 1 = 1
5cosx = 1

Divide each side by '5osx'.
c = 0.2o-1s-1x-1

Simplifying
c = 0.2o-1s-1x-1

See similar equations:

| Xcos(xy)=0 | | -6x+23y=-13 | | 26n=78 | | x+8=4x-4 | | 7x^2=37x+30 | | 1/2(y-3)=4y | | 3c+6-d=10 | | X^3-18= | | 21+x=70 | | m-16=9 | | (-5)2x(-5)3= | | 5+4q=-7q-6 | | -16+8d=2(5d-7) | | (2a-1a)*(3b-1b)=0 | | 9x-6=8x-7x+8 | | (X^2+2x+3)(x^2-2x-2)= | | 5a*(2a+2b)=0 | | 9x-5=7x | | y^2-5=4y | | -32x=16 | | (2x+3)(5x-4)=0 | | Cos^4x-sin^4=cos(2x) | | (3xy^3)(2x^3y)= | | 2x+386=2516 | | 0.21x-1.05=2.1-0.14x | | G(x)=x^2+8x-3 | | 1001x^-4y^-3)/(77x^6y^-7) | | -3(6x+8)=120 | | 4(-3x-2)+2(5x+1)=4 | | -2-3(1+6x)=121 | | x-16+4x+1=180 | | 9x+3y=2278 |

Equations solver categories