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(cos(x))^2
12408;47
7648;20
2*x
936;4
| 4x+3(2x-3)=-(3-4x)+5 | | x-1/6-1=x-5/7 | | 3(3x+5)=5(3-2y) | | 7x+1=5x-3(2-5x)+3 | | (2x^2+3x+1)(x+1)=0 | | 3+2(3-2x)+1=5-3(1-x) | | 16-2a=11-a | | 9x+108= | | 7(3-2x)=28 | | 7a-2=9a-8 | | x^2-9x=96 | | 12*1800= | | 6(4-x)=6 | | 6x+8=-7x-5 | | 2x+4=4(x+5) | | 16x^2-ax+9=0 | | -21y+98=12y-1 | | .25(60)+010x=0.15(60+x) | | 16x^2+ax+9=0 | | u^2+z^2=13 | | Z=ln(9-1x^2-y^2) | | Y=(p-1)x^2 | | 3n-5xn= | | 7x-q=26 | | Y=9-4px | | -4y+8=-2 | | 10=x*3.5+0.5 | | 3a+7b+-1a+4b= | | 4kx^2+HX+8=0 | | cos(3x)=sin(7x) | | 2(x-3)/4-6 | | 2cos(x)-x*sin(x)=0 |