Answer:
Step-by-step explanation:
Given two parametric equations 
and 
, the first derivative can be found using the following equation:
In this problem, 
and 
. Finding the derivative of each of these functions with respect to 
gives us the following:
Because , that means the function is a vertical line and has an infinite first derivative.
I'm sorry but what's the full question?
The area of a circle is pi times the radius squared (A = π r²). Example of calculating the area of a circle is in the image below.
Answer:
2x^2 + 2y^2 + 2z^2
Step-by-step explanation:
x^2+xy-yx+y^2 + y^2+yz-zy+z^2 + z^2+zx-xz+x^2
First step is to put all the same ones together
( FYI, xy and yx is the same thing, just like how
2 x 3 and 3 x 2 is the same thing) this time I'll bracket the groups to make it easier on the eyes
(x^2 +x^2) + (xy - xy) +( y^2 + y^2) + (yz - yz) +
(z^2 +z^2) + (zx - zx)
2x^2 + 2y^2 + 2z^2
All the others just cancel themselves out, for example, xy-xy
When anything minus themselves it will become 0
7 guests
It costs 5 dollars per guest, so divide 35 by 5
