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Simplifying 3cos(2x) + 2sin2(x) + -2 = 0 Remove parenthesis around (2x) 3cos * 2x + 2sin2(x) + -2 = 0 Reorder the terms for easier multiplication: 3 * 2cos * x + 2sin2(x) + -2 = 0 Multiply 3 * 2 6cos * x + 2sin2(x) + -2 = 0 Multiply cos * x 6cosx + 2sin2(x) + -2 = 0 Multiply in2s * x 6cosx + 2in2sx + -2 = 0 Reorder the terms: -2 + 6cosx + 2in2sx = 0 Solving -2 + 6cosx + 2in2sx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 6cosx + 2 + 2in2sx = 0 + 2 Reorder the terms: -2 + 2 + 6cosx + 2in2sx = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 6cosx + 2in2sx = 0 + 2 6cosx + 2in2sx = 0 + 2 Combine like terms: 0 + 2 = 2 6cosx + 2in2sx = 2 Add '-2in2sx' to each side of the equation. 6cosx + 2in2sx + -2in2sx = 2 + -2in2sx Combine like terms: 2in2sx + -2in2sx = 0 6cosx + 0 = 2 + -2in2sx 6cosx = 2 + -2in2sx Divide each side by '6osx'. c = 0.3333333333o-1s-1x-1 + -0.3333333333in2o-1 Simplifying c = 0.3333333333o-1s-1x-1 + -0.3333333333in2o-1 Reorder the terms: c = -0.3333333333in2o-1 + 0.3333333333o-1s-1x-1
| 32+43k=186.8 | | 3r^2+5r-2=0 | | 1(x+3)= | | 6x+-5= | | 8(h+3.5)= | | 33=12r-3(8-r) | | 50/2=30/x | | 7x=9x-4 | | X(10.5)(1)=735 | | (7y+3)=(8y-3) | | Z/2-6=-3 | | -1=v/3-3 | | 5x+68=15 | | 56=4/7y | | 2/3y-12=48 | | 7/2y=49 | | 4x-z=44-3 | | 17=12+y | | 2/3y-12=38 | | (4y+9)=(7y-3) | | -10=5-3f | | (4y+9)=(7m-3) | | 3x^2+8x-224=0 | | 1/6=x/9.3 | | -2+2(8x+7)=-16 | | Z-x+y=5-2+5 | | 2x+3x-1=14 | | 11/4=x/13 | | (8y-18)=(6y+4) | | 14+5x=3-x+3-11 | | 11/4=x13 | | 4(6-10)=8x+40 |