4cos(2x-30)-3=1

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Solution for 4cos(2x-30)-3=1 equation:


Simplifying
4cos(2x + -30) + -3 = 1

Reorder the terms:
4cos(-30 + 2x) + -3 = 1
(-30 * 4cos + 2x * 4cos) + -3 = 1
(-120cos + 8cosx) + -3 = 1

Reorder the terms:
-3 + -120cos + 8cosx = 1

Solving
-3 + -120cos + 8cosx = 1

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 + -120cos + 3 + 8cosx = 1 + 3

Reorder the terms:
-3 + 3 + -120cos + 8cosx = 1 + 3

Combine like terms: -3 + 3 = 0
0 + -120cos + 8cosx = 1 + 3
-120cos + 8cosx = 1 + 3

Combine like terms: 1 + 3 = 4
-120cos + 8cosx = 4

Reorder the terms:
-4 + -120cos + 8cosx = 4 + -4

Combine like terms: 4 + -4 = 0
-4 + -120cos + 8cosx = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-1 + -30cos + 2cosx) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-1 + -30cos + 2cosx)' equal to zero and attempt to solve: Simplifying -1 + -30cos + 2cosx = 0 Solving -1 + -30cos + 2cosx = 0 Move all terms containing c to the left, all other terms to the right. Add '1' to each side of the equation. -1 + -30cos + 1 + 2cosx = 0 + 1 Reorder the terms: -1 + 1 + -30cos + 2cosx = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -30cos + 2cosx = 0 + 1 -30cos + 2cosx = 0 + 1 Combine like terms: 0 + 1 = 1 -30cos + 2cosx = 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.

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