09.07.2014 » РЕАЛ » ВОЛНА »
solve 3*9^(x-1/2)-7*6^x+3*4^(x+1) = 0 over the real
19.06.2014 » РЕАЛ » РЕЗЕРВ »
solve {1/sin(x)^2-3/sin(x)+2= 0,-5*Pi/2<=x,x<=-Pi}
plot 1/sin(x)^2-3/sin(x)+2,x=-5*Pi/2..-Pi,y=-1..8
05.06.2014 » РЕАЛ » ЗАПАД »
{cos(x)+sqrt(3)*sin(3*Pi/2-x/2)+1 = 0, -4*Pi <= x, x <= -5*Pi/2}
plot cos(x)+sqrt(3)*sin(3*Pi/2-x/2)+1 for x from -4*Pi to -5*Pi/2
solve {cos(2*x)+1 = sqrt(2)*sin(Pi/2-x), -4*Pi <= x, x <= -5*Pi/2}
plot (cos(2*x)+1,sqrt(2)*sin(Pi/2-x)) for x from -4*Pi to -5*Pi/2
solve {cos(2*x)+1+sqrt(2)*sin(Pi/2+x)=0, -3*Pi <= x, x <= -(3*Pi)/2}
plot (cos(2*x)+1,-sqrt(2)*sin(Pi/2+x)) for x from -3*Pi to -3*Pi/2
{tan(x)^2+(1+sqrt(3))*tan(x)+sqrt(3)=0, 5*Pi/2<= x, x <= 4*Pi}
plot tan(x)^2+(1+sqrt(3))*tan(x)+sqrt(3) for x from 5*Pi/2 to 4*Pi and y from -1
to 1
05.06.2014 » РЕАЛ » ВОСТОК »
{2*sqrt(3)*cos(3*Pi/2+x)^2-sin(2*x) = 0, x >= 3*Pi/2, x <= 3*Pi}
plot {2*sqrt(3)*cos(3*Pi/2+x)^2,sin(2*x)} for x=3*Pi/2..3*Pi
{2*cos((3*Pi)/2+x)^2=sin(2*x), x >= -(9*Pi)/2, x <= -3*Pi}
plot (2*cos((3*Pi)/2+x)^2,sin(2*x)) for x from -(9*Pi)/2 to -3*Pi
08.05.2014 » ДОСРОЧНЫЙ » РЕЗЕРВ »
solve {(2/5)^cos(x)+(5/2)^cos(x)=2,-3*Pi<=x,x<=-(3*Pi)/2}
plot ((2/5)^cos(x),2-(5/2)^cos(x)) for x from-3*Pi to -3*Pi/2
solve {(4/5)^sin(x)+(5/4)^sin(x)=2,2*Pi<=x,x<= (7*Pi)/2}
plot ((4/5)^sin(x),2-(5/4)^sin(x)) for x=2*Pi..(7*Pi)/2
28.04.2014 » ДОСРОЧНЫЙ »
9^sin(x)+9^(-sin(x)) = 10/3, x from -7*Pi/2 to -2*Pi
solve {9^sin(x)+9^(-sin(x)) = 10/3,-7*Pi*(1/2)<=x,x<=-2*Pi}
solve {4^sin(x)+4^(-sin(x)) = 5/2,5*Pi/2<=x,x<=4*Pi}
plot (4^(-sin(x)),5/2-4^sin(x)),x=5*Pi/2..4*Pi
solve {4^cos(x)+4^(-cos(x)) = 5/2,-3*Pi<=x,x<=-3*Pi/2}
4^cos(x)+4^(-cos(x)) = 5/2, x from -3*Pi to -3*Pi/2
solve {9^cos(x)+9^(-cos(x)) = 10/3, 2*Pi<=x,x<=7*Pi/2}
9^cos(x)+9^(-cos(x)) = 10/3, x from 2*Pi to 7*Pi/2
9^sin(x)+9^(-sin(x)) = 10/3, x from -7*Pi/2 to -2*Pi
solve {9^sin(x)+9^(-sin(x)) = 10/3,-7*Pi*(1/2)<=x,x<=-2*Pi}
19.05.2014 » ТРЕНИНГ » ДЕМОН » 7 »
{(4/9)^cosx+2*(2/3)^cosx-3 = 0, x >= Pi, x <= 4*Pi}
plot (4/9)^cosx,-2*(2/3)^cosx+3 for x=Pi..4*Pi
{(1/16)^cosx+3*(1/4)^cosx-4=0,x>=4Pi,x<=7Pi}
(1/16)^cosx+3*(1/4)^cosx-4=0 over the reals
22.04.2014 » ТРЕНИНГ » ДЕМОН » 6 »
(5cosx+4)/(4tgx-3) = 0
solve {(5cosx+4)/(4tgx-3)=0,-4Pi<=x,x<=-5Pi/2}
(5tgx-12)/(13cosx-5)=0
solve {(5tgx-12)/(13cosx-5)=0,4Pi<=x,x<=11Pi/2}
13.03.2014 » ДИАГНОЗ » ДЕМОН » 5 »
4cosx^4-4cosx^2+1 = 0
4cosx^4-4cosx^2+1 = 0, -2Pi<=x,x<=-Pi
16cosx^4-24cosx^2+9 = 0
{16cosx^4-24cosx^2+9 = 0,2Pi<=x,x<=3Pi}
