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Simplifying cos(2x) + cos(3x) = 0 Remove parenthesis around (2x) cos * 2x + cos(3x) = 0 Reorder the terms for easier multiplication: 2cos * x + cos(3x) = 0 Multiply cos * x 2cosx + cos(3x) = 0 Remove parenthesis around (3x) 2cosx + cos * 3x = 0 Reorder the terms for easier multiplication: 2cosx + 3cos * x = 0 Multiply cos * x 2cosx + 3cosx = 0 Combine like terms: 2cosx + 3cosx = 5cosx 5cosx = 0 Solving 5cosx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Divide each side by '5'. cosx = 0 Simplifying cosx = 0 The solution to this equation could not be determined.
| 14=4x-8-3x | | 3212=44p+132 | | (3y/6y-12)-(2y/y-2) | | 11736.1519=4/3*3.14*r^3 | | 12.5x=-62.5 | | 9j-6h=-5+1 | | -47x+10x=24-48 | | 13y-9y-5=78.12 | | 3m^2-13m=14 | | 12x=-62.5 | | 2c=c+19 | | n/4=11/3 | | 2c=13+c | | 5(5k+15)= | | t=21.69+3s | | 23216.0422=4/3*3.14*r^3 | | 10+-8=h | | t=3s+21.69 | | 4x-12x+12=14x-6x+6 | | In(x-4)=2 | | 14(X+2)= | | 6p^2+1=529 | | -w^2=576 | | 3(x+9)=7(x+5) | | 2x^2-x-185=0 | | 13x-3x=90 | | 11x^22=891 | | 9e-7=-7e-11 | | 10m+35= | | m-18=-24 | | 81/3-27 | | 6m^2-9=261 |