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Simplifying (sinx) = 2(cos(2x)) insx = 2(cos(2x)) Remove parenthesis around (2x) insx = 2(cos * 2x) Reorder the terms for easier multiplication: insx = 2(2cos * x) Multiply cos * x insx = 2(2cosx) Remove parenthesis around (2cosx) insx = 2 * 2cosx Multiply 2 * 2 insx = 4cosx Solving insx = 4cosx Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Divide each side by 'nsx'. i = 4cn-1o Simplifying i = 4cn-1o
| 82-2x=5x-15 | | 82-2x=5x-15 | | 5x^2-10x-60=0 | | 4.5x=23 | | 5+2(x+1)=10+4(x+2) | | 4x=2500 | | sin(x)=2cos(2x) | | 2v^2+4v+1=0 | | 5x-48=2x+27 | | 16x=94 | | 5-8x=21-22x | | (5+2)9=m | | 8.2=2x | | 5+3m=-19 | | 11x-55=x | | 36=90x | | -55-8x=21-22x | | 5x=67 | | 5=67x | | 137-2x=25x+20 | | x=2*56:7x+8-9*86 | | 8-7x=136-35x | | x=2*56:7x+8-9.1 | | 11+4=2x+1 | | 9x-3=9x-3 | | 5v+1=-14 | | 3k-27=0 | | -7(2b-4)=2(3j-6) | | -3-4n=-31 | | 8=2h+4 | | 3n+1=2n+4 | | 2x^2-16x=-24 |