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Simplifying 3cos2(3x) + 3sin2(3x) = 3 Remove parenthesis around (3x) 3cos2 * 3x + 3sin2(3x) = 3 Reorder the terms for easier multiplication: 3 * 3cos2 * x + 3sin2(3x) = 3 Multiply 3 * 3 9cos2 * x + 3sin2(3x) = 3 Multiply cos2 * x 9cos2x + 3sin2(3x) = 3 Remove parenthesis around (3x) 9cos2x + 3in2s * 3x = 3 Reorder the terms for easier multiplication: 9cos2x + 3 * 3in2s * x = 3 Multiply 3 * 3 9cos2x + 9in2s * x = 3 Multiply in2s * x 9cos2x + 9in2sx = 3 Solving 9cos2x + 9in2sx = 3 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-9in2sx' to each side of the equation. 9cos2x + 9in2sx + -9in2sx = 3 + -9in2sx Combine like terms: 9in2sx + -9in2sx = 0 9cos2x + 0 = 3 + -9in2sx 9cos2x = 3 + -9in2sx Divide each side by '9os2x'. c = 0.3333333333o-1s-2x-1 + -1in2o-1s-1 Simplifying c = 0.3333333333o-1s-2x-1 + -1in2o-1s-1 Reorder the terms: c = -1in2o-1s-1 + 0.3333333333o-1s-2x-1
| 1.94x-11.25x+4.32=2(0.575x+1.7) | | -16x^2+14t+850=0 | | 4c+5+x=6x-7-x | | 6n+12+3n+6=58.5 | | 0.353x=4.1 | | 8n+8=10 | | 43=5n-7 | | -2(x+4)-6=-4(x-4) | | 486x^4-6=0 | | 2x+5x=182 | | -23+79=-13 | | -7x-3+5x=-25 | | 0=3x^2+51 | | 88=-8(x-7) | | 6n+13=175 | | (f-32)=c | | -8=1+3m+6m | | 10-14x=-9x | | -4f+8=4f+4 | | 7+3x+2x=12 | | 23=-5+4x+4 | | 11b+8=52 | | 6-5x+2x=-18 | | 5n+6=34 | | 1/4-1=175 | | 2x-6+x+6=56 | | 3t^2-90t=0 | | 1+6x+x=43 | | -8f+4=4 | | 7x+3=3x+6 | | -3x+17=20 | | x^8-7x^5-4x^2-12=0 |