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Simplifying cos(4x) + -3cos(2x) = 4 Remove parenthesis around (4x) cos * 4x + -3cos(2x) = 4 Reorder the terms for easier multiplication: 4cos * x + -3cos(2x) = 4 Multiply cos * x 4cosx + -3cos(2x) = 4 Remove parenthesis around (2x) 4cosx + -3cos * 2x = 4 Reorder the terms for easier multiplication: 4cosx + -3 * 2cos * x = 4 Multiply -3 * 2 4cosx + -6cos * x = 4 Multiply cos * x 4cosx + -6cosx = 4 Combine like terms: 4cosx + -6cosx = -2cosx -2cosx = 4 Solving -2cosx = 4 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Divide each side by '-2osx'. c = -2o-1s-1x-1 Simplifying c = -2o-1s-1x-1
| cos(4x)-3*cos(2x)=0 | | 8x*3x=32x | | 8x*3x=24x | | 3=243 | | 2(3k+5)-13k+5+3= | | 44/3 | | 3cos(x-45)=2.7 | | F(x)=12-5x^2/5 | | 2/5(35x-10)-13=1/2(4x-16) | | =10b-7a+(-b)+10a-9b+5 | | =-5a-7b+a-5b-4-(-a) | | =2a-(-3a)-7a+8b-b+(-2b) | | 11x+5=6x+5 | | =20-15a+b+6+4a-4b | | =-3a-6b-10+8a-b-7 | | (5-2x)(3x+2)= | | =7a+2b+5-5a+9b-1 | | =-a+(-3a)+15+5a-(-2) | | =6-a+4-12a-11 | | =9a+8-2a-3-5a | | =4+x+(-10)-11x | | 4-cos^2(x)+5sin(x)=2sin^2(x)+sin(x) | | =18-(-6x)-3+8x | | =7+10x-x+(-x) | | =-2x+14-9x+(-1) | | -2s+-6s=8 | | =8x-6+x-1 | | =13-x-4x | | 2(4x+12)-10x-6=6 | | 62-x=55 | | -2+-6=8 | | =14-x-4x |