sin(2x)-cos(x)-2sin(x)-1=0

Simple and best practice solution for sin(2x)-cos(x)-2sin(x)-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 sin(2x)-cos(x)-2sin(x)-1=0 equation:


Simplifying
sin(2x) + -1cos(x) + -2sin(x) + -1 = 0

Remove parenthesis around (2x)
ins * 2x + -1cos(x) + -2sin(x) + -1 = 0

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

Multiply ins * x
2insx + -1cos(x) + -2sin(x) + -1 = 0

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

Multiply ins * x
2insx + -1cosx + -2insx + -1 = 0

Reorder the terms:
-1 + -1cosx + 2insx + -2insx = 0

Combine like terms: 2insx + -2insx = 0
-1 + -1cosx + 0 = 0
-1 + -1cosx = 0

Solving
-1 + -1cosx = 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 + -1cosx = 0 + 1

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

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

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

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

See similar equations:

| -10(s+2)=14 | | 7(4x-1)-2(5x+6)=2x-11 | | 20.28+32x^2-50.96x=0 | | 4(a-3)=36 | | 8x-vw=y-w | | 3(8)+5y=52 | | 50+50*0+1= | | 3a^2-21a=0 | | 9(4x-5)=12x-4(x-6) | | 34x-14= | | -2sin^2x+sinx-1=0 | | 1.2n^3-15n^2+100n=14986 | | 4+3+6-10= | | Log(x)9=2 | | 2-2+3-2= | | 200x^2-80x-384=0 | | 0.04(2500)+0.06(2500)=120 | | 2cos*2x-3=2 | | x^2+x^3=100 | | y^2+8y-384=0 | | 9x+4y=3x+8 | | 6x-12y+15u=0 | | 3+-3*6+-2=0 | | 5a-6=4a+5 | | 0.04x+0.06y=2500 | | 10-3(4a-3)=2(3a-4)-9 | | 25x+50x=10000 | | abx=3abx+xb^2+xa^2+bx^2+ax^2+a^2b+b^2a | | x^3-68x-308=0 | | x^2+521x+223=0 | | 8d-2h+16=0 | | -x+6x-8=3x+7 |

Equations solver categories