sin(2x)*cos(x)=2cos^2(x)

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Solution for sin(2x)*cos(x)=2cos^2(x) equation:


Simplifying
sin(2x) * cos(x) = 2cos2(x)

Remove parenthesis around (2x)
ins * 2x * cos(x) = 2cos2(x)

Reorder the terms for easier multiplication:
2ins * x * cos * x = 2cos2(x)

Multiply ins * x
2insx * cos * x = 2cos2(x)

Multiply insx * cos
2cinos2x * x = 2cos2(x)

Multiply cinos2x * x
2cinos2x2 = 2cos2(x)

Multiply cos2 * x
2cinos2x2 = 2cos2x

Solving
2cinos2x2 = 2cos2x

Solving for variable 'c'.

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

Add '-2cos2x' to each side of the equation.
2cinos2x2 + -2cos2x = 2cos2x + -2cos2x

Combine like terms: 2cos2x + -2cos2x = 0
2cinos2x2 + -2cos2x = 0

Factor out the Greatest Common Factor (GCF), '2cos2x'.
2cos2x(inx + -1) = 0

Ignore the factor 2.

Subproblem 1

Set the factor 'cos2x' equal to zero and attempt to solve: Simplifying cos2x = 0 Solving cos2x = 0 Move all terms containing c to the left, all other terms to the right. Simplifying cos2x = 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 '(inx + -1)' equal to zero and attempt to solve: Simplifying inx + -1 = 0 Reorder the terms: -1 + inx = 0 Solving -1 + inx = 0 Move all terms containing c to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + inx = 0 + 1 Combine like terms: -1 + 1 = 0 0 + inx = 0 + 1 inx = 0 + 1 Combine like terms: 0 + 1 = 1 inx = 1 Add '-1inx' to each side of the equation. inx + -1inx = 1 + -1inx Combine like terms: inx + -1inx = 0 0 = 1 + -1inx Simplifying 0 = 1 + -1inx 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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