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We need to isolate the dependent variable , we can do that by simultaneously subtracting $1$ from both sides of the equation
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$2\sin\left(x\right)=-1$
Learn how to solve trigonometric equations problems step by step online. Solve the trigonometric equation 2sin(x)+1=0. We need to isolate the dependent variable , we can do that by simultaneously subtracting 1 from both sides of the equation. Divide both sides of the equation by 2. Divide -1 by 2. The angles where the function \sin\left(x\right) is -\frac{1}{2} are.