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Simplifying Sin(30 + -1x) + cos(60 + -1x) = cosx (30 * inS + -1x * inS) + cos(60 + -1x) = cosx (30inS + -1inxS) + cos(60 + -1x) = cosx 30inS + -1inxS + (60 * cos + -1x * cos) = cosx 30inS + -1inxS + (60cos + -1cosx) = cosx Reorder the terms: 60cos + -1cosx + 30inS + -1inxS = cosx Solving 60cos + -1cosx + 30inS + -1inxS = cosx Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-1cosx' to each side of the equation. 60cos + -1cosx + 30inS + -1cosx + -1inxS = cosx + -1cosx Reorder the terms: 60cos + -1cosx + -1cosx + 30inS + -1inxS = cosx + -1cosx Combine like terms: -1cosx + -1cosx = -2cosx 60cos + -2cosx + 30inS + -1inxS = cosx + -1cosx Combine like terms: cosx + -1cosx = 0 60cos + -2cosx + 30inS + -1inxS = 0 Add '-30inS' to each side of the equation. 60cos + -2cosx + 30inS + -30inS + -1inxS = 0 + -30inS Combine like terms: 30inS + -30inS = 0 60cos + -2cosx + 0 + -1inxS = 0 + -30inS 60cos + -2cosx + -1inxS = 0 + -30inS Remove the zero: 60cos + -2cosx + -1inxS = -30inS Add 'inxS' to each side of the equation. 60cos + -2cosx + -1inxS + inxS = -30inS + inxS Combine like terms: -1inxS + inxS = 0 60cos + -2cosx + 0 = -30inS + inxS 60cos + -2cosx = -30inS + inxS Reorder the terms: 60cos + -2cosx + 30inS + -1inxS = -30inS + 30inS + inxS + -1inxS Combine like terms: -30inS + 30inS = 0 60cos + -2cosx + 30inS + -1inxS = 0 + inxS + -1inxS 60cos + -2cosx + 30inS + -1inxS = inxS + -1inxS Combine like terms: inxS + -1inxS = 0 60cos + -2cosx + 30inS + -1inxS = 0 The solution to this equation could not be determined.
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