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Simplifying 2cos(x) + -1x * sin(x) = 0 Multiply cos * x 2cosx + -1x * sin(x) = 0 Multiply x * ins 2cosx + -1insx * x = 0 Multiply insx * x 2cosx + -1insx2 = 0 Solving 2cosx + -1insx2 = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add 'insx2' to each side of the equation. 2cosx + -1insx2 + insx2 = 0 + insx2 Combine like terms: -1insx2 + insx2 = 0 2cosx + 0 = 0 + insx2 2cosx = 0 + insx2 Remove the zero: 2cosx = insx2 Divide each side by '2osx'. c = 0.5ino-1x Simplifying c = 0.5ino-1x
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