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Move everything to the left hand side of the equation
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$2\cos\left(t\right)+\frac{1}{3}-\cos\left(t\right)=0$
Learn how to solve problems step by step online. Solve the trigonometric equation 2cos(t)+1/3=cos(t). Move everything to the left hand side of the equation. Combining like terms 2\cos\left(t\right) and -\cos\left(t\right). We need to isolate the dependent variable , we can do that by simultaneously subtracting \frac{1}{3} from both sides of the equation. This equation has no solutions in the real plane.