2sin(2x)+9cos(x)+3=0

Simple and best practice solution for 2sin(2x)+9cos(x)+3=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 2sin(2x)+9cos(x)+3=0 equation:


Simplifying
2sin(2x) + 9cos(x) + 3 = 0

Remove parenthesis around (2x)
2ins * 2x + 9cos(x) + 3 = 0

Reorder the terms for easier multiplication:
2 * 2ins * x + 9cos(x) + 3 = 0

Multiply 2 * 2
4ins * x + 9cos(x) + 3 = 0

Multiply ins * x
4insx + 9cos(x) + 3 = 0

Multiply cos * x
4insx + 9cosx + 3 = 0

Reorder the terms:
3 + 9cosx + 4insx = 0

Solving
3 + 9cosx + 4insx = 0

Solving for variable 'c'.

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

Add '-3' to each side of the equation.
3 + 9cosx + -3 + 4insx = 0 + -3

Reorder the terms:
3 + -3 + 9cosx + 4insx = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 9cosx + 4insx = 0 + -3
9cosx + 4insx = 0 + -3

Combine like terms: 0 + -3 = -3
9cosx + 4insx = -3

Add '-4insx' to each side of the equation.
9cosx + 4insx + -4insx = -3 + -4insx

Combine like terms: 4insx + -4insx = 0
9cosx + 0 = -3 + -4insx
9cosx = -3 + -4insx

Divide each side by '9osx'.
c = -0.3333333333o-1s-1x-1 + -0.4444444444ino-1

Simplifying
c = -0.3333333333o-1s-1x-1 + -0.4444444444ino-1

Reorder the terms:
c = -0.4444444444ino-1 + -0.3333333333o-1s-1x-1

See similar equations:

| 2(x-1/8)-3/5x=55/4 | | 1/2x-5=21 | | 5x+17=180 | | a-6/6 | | -4s-1=3s-71 | | 7(x+2)=10(x+5) | | (x-8)2-(y-a)2=16 | | 15x+3=180 | | -4x+10=3x | | 3(x+4)+2(5x-1)=0 | | 17=2+5+5m | | 6x+250=2x+170 | | 6x-4=26x+28 | | 5x+17=360 | | 15+5x=12x-3-38 | | 3(x-4)-7= | | 15x+3=360 | | 4x+111=2x+79 | | -18n+4=-14n-4 | | 250+x=20(7) | | (2+7i)(3-5i)= | | 7n+3=5 | | 20(7)+2x=250+x | | (2x^2-3x)/5-3 | | 6x+68=3x+138 | | 2/k=3/15 | | 5w+6=-29 | | 3x+10=360 | | 4(2x-8)=3(2x-4) | | 5n-9=31 | | 15-2x=-4x+13 | | 6x+36=4x+104 |

Equations solver categories