how to plot this function with figure

In the same figure, plot:1) sin(x), x+1, x3-3, in the rank -2 to 3.14

2)Plot x=8×cos⁡(t),y=4√(sin⁡(t)),z=-4√(sin⁡(t)) ，t= [0,2π]

3)z=(sin√(x^2+y^2 ))/√(x^2+y^2 )

[Adam Danz]

If you have a specific question about a small part of your assignment many volunteers would he happy to help. But you've got to do your own assignment.

[marwan alamah]

this is a littel different from what teacher had taught us and i want to understand it and know how to calculate all in right way

x=(-2:3.18);
y=sin(x);
plot(x,y)
hold on 
z=x+1;
plot(x,y,x,z)
hold on 
m=x.^3-3;
plot(x,y,x,z,x,m)

is this answer right for part one

[David Hill]

You likely want to break x into a larger array.

x=-2:.01:3.18;

You can plot all at once with one plot command

plot(x,y,x,z,x,m);

[Adam Danz]

In addition to David's advice, you'll also need to apply the math in your question, of course. Those functions should be pretty easy to identify.