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Simplifying cos(3x) = sin(7x) Remove parenthesis around (3x) cos * 3x = sin(7x) Reorder the terms for easier multiplication: 3cos * x = sin(7x) Multiply cos * x 3cosx = sin(7x) Remove parenthesis around (7x) 3cosx = ins * 7x Reorder the terms for easier multiplication: 3cosx = 7ins * x Multiply ins * x 3cosx = 7insx Solving 3cosx = 7insx Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Divide each side by '3osx'. c = 2.333333333ino-1 Simplifying c = 2.333333333ino-1
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