3cos^2(x)-cos(x)-4=0

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Solution for 3cos^2(x)-cos(x)-4=0 equation:


Simplifying
3cos2(x) + -1cos(x) + -4 = 0

Multiply cos2 * x
3cos2x + -1cos(x) + -4 = 0

Multiply cos * x
3cos2x + -1cosx + -4 = 0

Reorder the terms:
-4 + -1cosx + 3cos2x = 0

Solving
-4 + -1cosx + 3cos2x = 0

Solving for variable 'c'.

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

Add '4' to each side of the equation.
-4 + -1cosx + 4 + 3cos2x = 0 + 4

Reorder the terms:
-4 + 4 + -1cosx + 3cos2x = 0 + 4

Combine like terms: -4 + 4 = 0
0 + -1cosx + 3cos2x = 0 + 4
-1cosx + 3cos2x = 0 + 4

Combine like terms: 0 + 4 = 4
-1cosx + 3cos2x = 4

Reorder the terms:
-4 + -1cosx + 3cos2x = 4 + -4

Combine like terms: 4 + -4 = 0
-4 + -1cosx + 3cos2x = 0

The solution to this equation could not be determined.

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