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Simplifying sin(2x) * sin(x) = cos(x) Remove parenthesis around (2x) ins * 2x * sin(x) = cos(x) Reorder the terms for easier multiplication: 2ins * x * ins * x = cos(x) Multiply ins * x 2insx * ins * x = cos(x) Multiply insx * ins 2i2n2s2x * x = cos(x) Multiply i2n2s2x * x 2i2n2s2x2 = cos(x) Multiply cos * x 2i2n2s2x2 = cosx Solving 2i2n2s2x2 = cosx Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Divide each side by '2n2s2x2'. i2 = 0.5cn-2os-1x-1 Simplifying i2 = 0.5cn-2os-1x-1 Reorder the terms: -0.5cn-2os-1x-1 + i2 = 0.5cn-2os-1x-1 + -0.5cn-2os-1x-1 Combine like terms: 0.5cn-2os-1x-1 + -0.5cn-2os-1x-1 = 0.0 -0.5cn-2os-1x-1 + i2 = 0.0 The solution to this equation could not be determined.
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