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