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Simplifying -2sinx + -4cos(2x) = 0 Remove parenthesis around (2x) -2insx + -4cos * 2x = 0 Reorder the terms for easier multiplication: -2insx + -4 * 2cos * x = 0 Multiply -4 * 2 -2insx + -8cos * x = 0 Multiply cos * x -2insx + -8cosx = 0 Reorder the terms: -8cosx + -2insx = 0 Solving -8cosx + -2insx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '2insx' to each side of the equation. -8cosx + -2insx + 2insx = 0 + 2insx Combine like terms: -2insx + 2insx = 0 -8cosx + 0 = 0 + 2insx -8cosx = 0 + 2insx Remove the zero: -8cosx = 2insx Divide each side by '-8osx'. c = -0.25ino-1 Simplifying c = -0.25ino-1
| X^30=.8 | | 2x-5=7+3x | | 14x=10x+5+9x-10 | | m=1/3nx | | 3(6e-3)=10e+4 | | 8b^2+3b+9-6-7b^2= | | 6=5x+2(-5x) | | 2(2x-3)=30 | | 48.3=69x | | 4y-9=6y+61 | | 14x+10x+5+9x-10=180 | | 7=5x+2(-7x) | | 25.2=56x | | -6y^2+4y+10=0 | | tan(45)=60/x | | i=ipv | | 3x(x-3)(x-7)=0 | | 8+5x+x=-28 | | 18=8x+2 | | Y^2-3x=2x+13 | | (-1-3x)/2 | | 8b+33=3-22b | | 11h-(10x-2)+3x=-25 | | m^2-8m-3=6 | | g-22.5=5.5g | | p^2-15p+8=43 | | 78=8v+6 | | y^2=5x+13 | | 42.6=71x | | =-16+36 | | p^2+5p-48=0 | | 3m+9=3.5m-1 |