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Simplifying cos(x) + cos(3x) + -1cos(5x) + -1cos(7x) = 0.5 Multiply cos * x cosx + cos(3x) + -1cos(5x) + -1cos(7x) = 0.5 Remove parenthesis around (3x) cosx + cos * 3x + -1cos(5x) + -1cos(7x) = 0.5 Reorder the terms for easier multiplication: cosx + 3cos * x + -1cos(5x) + -1cos(7x) = 0.5 Multiply cos * x cosx + 3cosx + -1cos(5x) + -1cos(7x) = 0.5 Remove parenthesis around (5x) cosx + 3cosx + -1cos * 5x + -1cos(7x) = 0.5 Reorder the terms for easier multiplication: cosx + 3cosx + -1 * 5cos * x + -1cos(7x) = 0.5 Multiply -1 * 5 cosx + 3cosx + -5cos * x + -1cos(7x) = 0.5 Multiply cos * x cosx + 3cosx + -5cosx + -1cos(7x) = 0.5 Remove parenthesis around (7x) cosx + 3cosx + -5cosx + -1cos * 7x = 0.5 Reorder the terms for easier multiplication: cosx + 3cosx + -5cosx + -1 * 7cos * x = 0.5 Multiply -1 * 7 cosx + 3cosx + -5cosx + -7cos * x = 0.5 Multiply cos * x cosx + 3cosx + -5cosx + -7cosx = 0.5 Combine like terms: cosx + 3cosx = 4cosx 4cosx + -5cosx + -7cosx = 0.5 Combine like terms: 4cosx + -5cosx = -1cosx -1cosx + -7cosx = 0.5 Combine like terms: -1cosx + -7cosx = -8cosx -8cosx = 0.5 Solving -8cosx = 0.5 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Divide each side by '-8osx'. c = -0.0625o-1s-1x-1 Simplifying c = -0.0625o-1s-1x-1
| 3m+8=3(4+8)-4 | | log(4)*64=x | | log(4)64=x | | F(x)=-2x^2-8x-6 | | 3x=143 | | -8+(-8)=-p+1.2p | | 16=6y | | u=72-7u | | 18x-5=10x-45 | | X+4-12=6 | | -1.3=-7.42-(-6.12) | | 4c+d+4c-3d= | | 7-(11+2x)=6 | | 4a+3b=16 | | 4x+5-x=10x+7-x | | 36+6s=8 | | -1.3=-n-(-6.12) | | cos(0.0172*x-1)=1 | | 8a-3a+4a= | | cos(0.0172*x-1)=0 | | -(a-b)-3(b-a)=3ab | | 15+3.5*x-4.9*x^2=0 | | 0=3x*lnx | | 36+6s=4+s | | u=12+3*2-0.25*2*2 | | -2-3-2*(-1)+(2*2.5)=0 | | -x-3-2y+2m=0 | | u=12+3*0-0.25*0*0 | | -(2y-12+-y)=-33 | | 5p+7=5p+8 | | U=12+3w-0.25w*w | | 3x+12=5x+5 |