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Simplifying sin2(2x) + -4cos2(x) = 0 Remove parenthesis around (2x) in2s * 2x + -4cos2(x) = 0 Reorder the terms for easier multiplication: 2in2s * x + -4cos2(x) = 0 Multiply in2s * x 2in2sx + -4cos2(x) = 0 Multiply cos2 * x 2in2sx + -4cos2x = 0 Reorder the terms: -4cos2x + 2in2sx = 0 Solving -4cos2x + 2in2sx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-2in2sx' to each side of the equation. -4cos2x + 2in2sx + -2in2sx = 0 + -2in2sx Combine like terms: 2in2sx + -2in2sx = 0 -4cos2x + 0 = 0 + -2in2sx -4cos2x = 0 + -2in2sx Remove the zero: -4cos2x = -2in2sx Divide each side by '-4os2x'. c = 0.5in2o-1s-1 Simplifying c = 0.5in2o-1s-1
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