I want to create a surface but I don't know the parameter 2. Help me write surface
please add a file and more details: which curves and which surface? Without any detail anyone can help
this is my file . Help me use the line integral to calculate the area
You can create the surface with Surface(sin(t), cos(t), p*(1+sin²(t)*cos(t)), t, -pi/2, pi/2, p, 0, 1)
In this p is the second parameter from 0 to 1, to cover the height between the function and the curve as a surface. For lenghts of curves and areas of surfaces you have to formulate and calculate the integrals yourself. GeoGebra doesn't do that for you.
thanks you so much. Can you say some ideas or keywords to solve this area?
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