The surface is parameterized by
and the normal to the surface is given by the cross product of the partial derivatives of :
It looks like you're given
Then the normal vector is
Now, the point (2, 2, 0) corresponds to u and v such that
and solving gives , so the normal vector at the point we care about is
Then the equation of the tangent plane is
You can find that out by using your calculator. It will be glad to let you know. You can put it in like this.
4
÷
5
=
Your calculator will come back with 0.8
So now you need only add on the 2
2 + 0.8 = 2.8 <<<<< Answer
Answer:
d equal 10 this is the answer
-4
Step-by-step explanation:
('+')('-') = ('-')
Therefore,
(+2)(-2) = (-4)