Write a code in sympy for questions below

1. Plot the function ex on [10,50] 2. Plot functions x2,sinx,x2sinx an [4,4] 3. Find the absolute extrema of the function f(x)=x2ex on [1,3] by a. Finding the critical number(s) b. Analyzing the derivatives on each interval based on the critical numbers c. Evaluate the function on the and points d. Finding the extrema of all those values. 4. Plot the multivariable function x=siny on [1,1][4,4] 5. Plot the parametric curve of x(t)=cost,y(t)=sec2t on [0,/2] 6. Plot the parametric curve of x(t)=cost,y(t)=sint,z=6, on [0,2] 7. Plot the parametric surface of x(u,v)=cos(u+v),y(u,v)=cos(u+v),z(u,v)=uv, on [2,2][2,2], 8. Plot a smiley face by defining your own functions (you can define multiple functions)