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Find the roots of the equation using the Quadratic Formula
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$\cos\left(2x\right)^2\cos\left(2x\right)=0$
Learn how to solve equations problems step by step online. Find the roots of cos(2x)^2cos(2x). Find the roots of the equation using the Quadratic Formula. When multiplying exponents with same base you can add the exponents: \cos\left(2x\right)^2\cos\left(2x\right). Removing the variable's exponent raising both sides of the equation to the power of \frac{1}{3}. Take the inverse of \cos\left(2x\right) on both sides.