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Simplifying cos2x + -1sin2x + sinx = 0 Reorder the terms: cos2x + insx + -1in2sx = 0 Solving cos2x + insx + -1in2sx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-1insx' to each side of the equation. cos2x + insx + -1insx + -1in2sx = 0 + -1insx Combine like terms: insx + -1insx = 0 cos2x + 0 + -1in2sx = 0 + -1insx cos2x + -1in2sx = 0 + -1insx Remove the zero: cos2x + -1in2sx = -1insx Add 'in2sx' to each side of the equation. cos2x + -1in2sx + in2sx = -1insx + in2sx Combine like terms: -1in2sx + in2sx = 0 cos2x + 0 = -1insx + in2sx cos2x = -1insx + in2sx Divide each side by 'os2x'. c = -1ino-1s-1 + in2o-1s-1 Simplifying c = -1ino-1s-1 + in2o-1s-1
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