16. Solve the equation. Check the solution.
1 answer:
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Call the surface 
; then the area of is given by the surface integral
Parameterize the surface by
with
and 
. The surface element is given by
So the area is
where
Parameterize the surface by
with
So the area is
where
Answer:
Given equation:
when we complete the square , we take half of the value of 8 , then square it, and added to the left sides, we get;
∵8 is the value
Notice that, we add this both sides so that it maintains the equality.
then;
[
]
Simplify:
The number must be added to complete the square is,