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Find the roots of the equation using the Quadratic Formula
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$9\sin\left(5\cdot 420+15\right)+4\sin\left(3\cdot 420+25\right)=0$
Learn how to solve equations problems step by step online. Find the roots of 9sin(5*420+15)+4sin(3*420+25). Find the roots of the equation using the Quadratic Formula. Multiply 5 times 420. Multiply 3 times 420. Add the values 2100 and 15.