4cos(2x-30)=2

Simple and best practice solution for 4cos(2x-30)=2 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 4cos(2x-30)=2 equation:


Simplifying
4cos(2x + -30) = 2

Reorder the terms:
4cos(-30 + 2x) = 2
(-30 * 4cos + 2x * 4cos) = 2
(-120cos + 8cosx) = 2

Solving
-120cos + 8cosx = 2

Solving for variable 'c'.

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

Reorder the terms:
-2 + -120cos + 8cosx = 2 + -2

Combine like terms: 2 + -2 = 0
-2 + -120cos + 8cosx = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-1 + -60cos + 4cosx) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-1 + -60cos + 4cosx)' equal to zero and attempt to solve: Simplifying -1 + -60cos + 4cosx = 0 Solving -1 + -60cos + 4cosx = 0 Move all terms containing c to the left, all other terms to the right. Add '1' to each side of the equation. -1 + -60cos + 1 + 4cosx = 0 + 1 Reorder the terms: -1 + 1 + -60cos + 4cosx = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -60cos + 4cosx = 0 + 1 -60cos + 4cosx = 0 + 1 Combine like terms: 0 + 1 = 1 -60cos + 4cosx = 1 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

See similar equations:

| 73-y=185 | | 75z^3+70z^2-40z= | | 4w=143 | | 7/2x*7/7 | | 4w=109 | | 10-17x=8-50 | | 15x^5-34x^4+15x= | | 8a^7(6a^2+10a)=0 | | x+2.5=9.21 | | -3(5s-6)-18=-3(7s+4)-4 | | 7x-3=4x+33 | | (2b-3)(b+5)= | | 15x^2-34xy+15y^2= | | (9x-3)/(8)=-6 | | 7q+12pq-9pq-11q= | | 5.35/567.10 | | -h=68c+682 | | 4/5x-56 | | Y=68-x | | X-(X/6)=1 | | 7-2i/5i | | -3(k-7)= | | -4x=19+8 | | (264+x)=85 | | 5sqr^15*5sqr^6= | | f(a)=3x^3+4x | | 15^(1/5)*6^(1/5)= | | 5x=5y+4 | | (3+x)2=38+Y | | 6v-7=y | | 6q^3-2q^2-35=0 | | (3+x)2=38+x |

Equations solver categories