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D( c )
c = 0
c = 0
c = 0
c in (-oo:0) U (0:+oo)
9 > 3/c // - 3/c
9-(3/c) > 0
9-3*c^-1 > 0
-3*c^-1 > -9
-3*c^-1 > -9 // * -1
3*c^-1 < 9
3*c^-1 < 9 // : 3
c^-1 < 9/3
c^-1 < 3
1/(c^1) < 3
c <> 0
1/(c^1) < 3 // * c^2
(c^2)/(c^1) < 3*c^2
c^1 < 3*c^2
c-3*c^2 < 0
c^1*(1-3*c) < 0
c < 0
-(abs(c))^1*(3*(abs(c))^1+1) < 0 // : -(abs(c))^1
3*(abs(c))^1+1 > 0
3*(abs(c))^1 > -1 // : 3
(abs(c))^1 > -1/3
(abs(c))^1 > -1/3 // ^ 1/1
abs(c) > (-1/3)^(1/1)
abs(c) > -1/3
c in (-oo:0)
c < 0
c > 0
c^1*(1-(3*c^1)) < 0 // : c^1
1-(3*c^1) < 0
1 < 3*c^1 // : 3
1/3 < c^1 // ^ 1/1
(1/3)^(1/1) < c
c in (1/3:+oo)
c > 0
c in (-oo:0) U (1/3:+oo)
c in (-oo:0) U (1/3:+oo)
(-oo:0) U (1/3:+oo)
| (360-2y)/3 | | 5/8x=108 | | x=(17-6)/4 | | logy=1 | | -32+8=13x | | 2(5y-1)=20 | | 4x+12=-87-7x# | | 4x+3=2x+10-5 | | 86-0.45= | | log216/log36 | | 114=2N-14 | | 5x+3=10x+1 | | 2(5y-1)=10 | | 39+x+(x+15)=22.5 | | (2/5)*288 | | (3/5x)*(5/8)=108 | | logy(8)=3 | | 6w+9=5w-10 | | 1.5(4x-4)-4x(4x-4)-2= | | 8x^2-48xy+72y^2= | | 5+17.3=41.2 | | (2(x+5)-5)+17=3(x-1) | | 3(2m+-7)(2m+7)= | | 32b-b^2-207=0 | | 3/5x=108 | | 3(2m+-7)= | | 5(x+7)=-3-2 | | (D^3-3D^2+7)y=0 | | x-((2/5x)*(5/8))=108 | | 3(2m-7)(2m+7)= | | X-((2/5x)*5/8)=108 | | n/3.4=4.8 |