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

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


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

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

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

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

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

Multiply cos * x
-2insx + cosx = 0

Reorder the terms:
cosx + -2insx = 0

Solving
cosx + -2insx = 0

Solving for variable 'c'.

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

Add '2insx' to each side of the equation.
cosx + -2insx + 2insx = 0 + 2insx

Combine like terms: -2insx + 2insx = 0
cosx + 0 = 0 + 2insx
cosx = 0 + 2insx
Remove the zero:
cosx = 2insx

Divide each side by 'osx'.
c = 2ino-1

Simplifying
c = 2ino-1

See similar equations:

| 12x+4=13x+5 | | 12xy+4y= | | 8.5x+168=9.5x+131 | | 3x/(x+2)+6/x=12/(x^2+2x) | | -1.25+0.25x= | | 3(1/2x-1)-(1+x)+1/3(2x+1/2)=1/2x+1 | | 3=7-2x | | 3(x-4)=2(x-1)+33 | | 9x-18-6-6x+4x+1=3x+6 | | 2x/(x-1)=5/(x-3) | | 2(x-1)=42 | | 2(x-1)=-4(3-x)-10 | | -70.00-2.25x=-250 | | 9x-18-6-6x+4x-3x=3x+6 | | 9(8t+1)-11=t-(t+1) | | 72t+9-11=t-(t+1) | | x^3-300x+50=0 | | 2/10=b/-20 | | -2.1q-4.6=0.9q-4.6 | | 8/5+3/5x=77/30+7/6x+5/6 | | 5x=3x-4+4x | | 15n+16=6x+169 | | 5x+4y=600 | | 10-9x=50-60x | | X-10+3x=2x+2 | | y-1=0(x-3) | | -2/3*w=-70 | | 1.4x-3=.4x | | -2/3*4=-70 | | 9*2(65/532) | | 9x^2-X^2=2.1 | | b^2-250b=1275 |

Equations solver categories