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Simplifying 7sen2 + 5sin(-1x) * cosx = 2 + -2cos2x Remove parenthesis around (-1x) 7en2s + 5ins * -1x * cosx = 2 + -2cos2x Reorder the terms for easier multiplication: 7en2s + 5 * -1ins * x * cosx = 2 + -2cos2x Multiply 5 * -1 7en2s + -5ins * x * cosx = 2 + -2cos2x Multiply ins * x 7en2s + -5insx * cosx = 2 + -2cos2x Multiply insx * cosx 7en2s + -5cinos2x2 = 2 + -2cos2x Reorder the terms: -5cinos2x2 + 7en2s = 2 + -2cos2x Solving -5cinos2x2 + 7en2s = 2 + -2cos2x Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '2cos2x' to each side of the equation. -5cinos2x2 + 2cos2x + 7en2s = 2 + -2cos2x + 2cos2x Combine like terms: -2cos2x + 2cos2x = 0 -5cinos2x2 + 2cos2x + 7en2s = 2 + 0 -5cinos2x2 + 2cos2x + 7en2s = 2 Add '-7en2s' to each side of the equation. -5cinos2x2 + 2cos2x + 7en2s + -7en2s = 2 + -7en2s Combine like terms: 7en2s + -7en2s = 0 -5cinos2x2 + 2cos2x + 0 = 2 + -7en2s -5cinos2x2 + 2cos2x = 2 + -7en2s Reorder the terms: -2 + -5cinos2x2 + 2cos2x + 7en2s = 2 + -7en2s + -2 + 7en2s Reorder the terms: -2 + -5cinos2x2 + 2cos2x + 7en2s = 2 + -2 + -7en2s + 7en2s Combine like terms: 2 + -2 = 0 -2 + -5cinos2x2 + 2cos2x + 7en2s = 0 + -7en2s + 7en2s -2 + -5cinos2x2 + 2cos2x + 7en2s = -7en2s + 7en2s Combine like terms: -7en2s + 7en2s = 0 -2 + -5cinos2x2 + 2cos2x + 7en2s = 0 The solution to this equation could not be determined.
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