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Simplifying Sin(7x + 15) = cos(3x + 40) Reorder the terms: inS(15 + 7x) = cos(3x + 40) (15 * inS + 7x * inS) = cos(3x + 40) (15inS + 7inxS) = cos(3x + 40) Reorder the terms: 15inS + 7inxS = cos(40 + 3x) 15inS + 7inxS = (40 * cos + 3x * cos) 15inS + 7inxS = (40cos + 3cosx) Solving 15inS + 7inxS = 40cos + 3cosx Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Reorder the terms: -40cos + -3cosx + 15inS + 7inxS = 40cos + 3cosx + -40cos + -3cosx Reorder the terms: -40cos + -3cosx + 15inS + 7inxS = 40cos + -40cos + 3cosx + -3cosx Combine like terms: 40cos + -40cos = 0 -40cos + -3cosx + 15inS + 7inxS = 0 + 3cosx + -3cosx -40cos + -3cosx + 15inS + 7inxS = 3cosx + -3cosx Combine like terms: 3cosx + -3cosx = 0 -40cos + -3cosx + 15inS + 7inxS = 0 The solution to this equation could not be determined.
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