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Simplifying cos2(3x) + -3sin(3x) = 3 Remove parenthesis around (3x) cos2 * 3x + -3sin(3x) = 3 Reorder the terms for easier multiplication: 3cos2 * x + -3sin(3x) = 3 Multiply cos2 * x 3cos2x + -3sin(3x) = 3 Remove parenthesis around (3x) 3cos2x + -3ins * 3x = 3 Reorder the terms for easier multiplication: 3cos2x + -3 * 3ins * x = 3 Multiply -3 * 3 3cos2x + -9ins * x = 3 Multiply ins * x 3cos2x + -9insx = 3 Solving 3cos2x + -9insx = 3 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '9insx' to each side of the equation. 3cos2x + -9insx + 9insx = 3 + 9insx Combine like terms: -9insx + 9insx = 0 3cos2x + 0 = 3 + 9insx 3cos2x = 3 + 9insx Divide each side by '3os2x'. c = o-1s-2x-1 + 3ino-1s-1 Simplifying c = o-1s-2x-1 + 3ino-1s-1 Reorder the terms: c = 3ino-1s-1 + o-1s-2x-1
| 17+0=17 | | 9x-3x=4x-48 | | 18-x=x+8 | | 21=y+x | | 2(x-4)=6-(3x-6) | | 7x+(xy)=163 | | 6a-1.1=ab | | 2a+5b=2.5 | | 2a-5b=2.5 | | 7-80=2x+4X-50 | | 2/3(6x-3)-(2x-7)=1 | | 4*28x= | | (6+5y)(9-4y)= | | 940/35 | | 11=(0.20)w | | 7b-5b^4= | | 1+x=-3.5 | | x^4+2x-180=0 | | -3t+(7t-7)=-11+2t | | -3t+7t-7=11+2t | | 6(5d+2)=18 | | x^3-7X^2+8x+16=0 | | x^3-7X^2+8x+30=0 | | 63=3(x+6)+5(2x+-4) | | 63=(3(x+6))+(5(5x-4)) | | 150-4x-5=y | | 3(x+6)=5(5x-4) | | 2/R=12 | | v^2-19+100=v | | 1/X-7=4 | | 5(x+3)=7(2x+3) | | 2X-336=312 |