2cos^2b+2cosb=0

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Solution for 2cos^2b+2cosb=0 equation:


Simplifying
2cos2b + 2cosb = 0

Reorder the terms:
2bcos + 2bcos2 = 0

Solving
2bcos + 2bcos2 = 0

Solving for variable 'b'.

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

Factor out the Greatest Common Factor (GCF), '2bcos'.
2bcos(1 + s) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 'bcos' equal to zero and attempt to solve: Simplifying bcos = 0 Solving bcos = 0 Move all terms containing b to the left, all other terms to the right. Simplifying bcos = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

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