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Simplifying 2cos(3x) + 3sin(3x) = 0 Remove parenthesis around (3x) 2cos * 3x + 3sin(3x) = 0 Reorder the terms for easier multiplication: 2 * 3cos * x + 3sin(3x) = 0 Multiply 2 * 3 6cos * x + 3sin(3x) = 0 Multiply cos * x 6cosx + 3sin(3x) = 0 Remove parenthesis around (3x) 6cosx + 3ins * 3x = 0 Reorder the terms for easier multiplication: 6cosx + 3 * 3ins * x = 0 Multiply 3 * 3 6cosx + 9ins * x = 0 Multiply ins * x 6cosx + 9insx = 0 Solving 6cosx + 9insx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-9insx' to each side of the equation. 6cosx + 9insx + -9insx = 0 + -9insx Combine like terms: 9insx + -9insx = 0 6cosx + 0 = 0 + -9insx 6cosx = 0 + -9insx Remove the zero: 6cosx = -9insx Divide each side by '6osx'. c = -1.5ino-1 Simplifying c = -1.5ino-1
| 7x-8x=1+2x | | 13x-5-9x=-9 | | 40=(12x-8) | | 3x-8=125 | | 14x^2-19x-9=0 | | 3+10x=-9+x | | N÷11/4 | | 40*1/x=6 | | 19370=x(.75) | | 3(3y)-5y=20 | | 6x+250=4x+300 | | 19370=x(.8) | | 4x+6=-50 | | X+2+3x-9+2x+1=36 | | 191=121-w | | 18370=x(.8) | | -8-(-8)+(-6)-12= | | 45-0.065= | | 0=100X-(9600+50x) | | (X^2+6x+8)(x^2+14x+48)=0 | | 6x-3=3x+12-3 | | 25n+2kg= | | 12k+3=-21 | | 4x^3-8x^2-20x=0 | | 7/x=42/6 | | x*.80=16 | | 5+10x+28-7x=36 | | x/.80=16 | | 4y-15=-8+9 | | 5*14*4=n | | 3(c+5)=21 | | 7x+42=12x-18 |