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Find the roots of the equation using the Quadratic Formula
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$\cos\left(15\right)=30\cdot \left(\frac{1}{2}\right)$
Learn how to solve equations problems step by step online. Find the roots of cos(15)=301/2. Find the roots of the equation using the Quadratic Formula. Divide 1 by 2. Multiply 30 times \frac{1}{2}. The cosine of 15 equals .