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Simplifying sin(2a) = cos(a) Remove parenthesis around (2a) ins * 2a = cos(a) Reorder the terms for easier multiplication: 2ins * a = cos(a) Multiply ins * a 2ains = cos(a) Multiply cos * a 2ains = acos Solving 2ains = acos Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '-1acos' to each side of the equation. -1acos + 2ains = acos + -1acos Combine like terms: acos + -1acos = 0 -1acos + 2ains = 0 Factor out the Greatest Common Factor (GCF), 'as'. as(-1co + 2in) = 0Subproblem 1
Set the factor 'as' equal to zero and attempt to solve: Simplifying as = 0 Solving as = 0 Move all terms containing a to the left, all other terms to the right. Simplifying as = 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 '(-1co + 2in)' equal to zero and attempt to solve: Simplifying -1co + 2in = 0 Solving -1co + 2in = 0 Move all terms containing a to the left, all other terms to the right. Add 'co' to each side of the equation. -1co + co + 2in = 0 + co Combine like terms: -1co + co = 0 0 + 2in = 0 + co 2in = 0 + co Remove the zero: 2in = co Add '-2in' to each side of the equation. 2in + -2in = co + -2in Combine like terms: 2in + -2in = 0 0 = co + -2in Simplifying 0 = co + -2in 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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