Walking on a surface Consider the following surfaces specified in the form z = f ( x, y ) and the oriented curve C in the xy-plane. a. In each case, find z’ ( t ) . b. Imagine that you are walking on the surface directly above the curve C in the direction of positive orientation. Find the values of t for which you are walking uphill ( that is, z is increasing ) . 56. z = 2 x 2 + y 2 + 1 , C : x = 1 + cos t , y = sin t ; 0 ≤ t ≤ 2 π
Walking on a surface Consider the following surfaces specified in the form z = f ( x, y ) and the oriented curve C in the xy-plane. a. In each case, find z’ ( t ) . b. Imagine that you are walking on the surface directly above the curve C in the direction of positive orientation. Find the values of t for which you are walking uphill ( that is, z is increasing ) . 56. z = 2 x 2 + y 2 + 1 , C : x = 1 + cos t , y = sin t ; 0 ≤ t ≤ 2 π
Solution Summary: The author explains that the value of zprime is -5mathrmsin2t.
Walking on a surfaceConsider the following surfaces specified in the form z = f(x, y) and the oriented curve C in the xy-plane.
a. In each case, find z’ (t).
b. Imagine that you are walking on the surface directly above the curve C in the direction of positive orientation. Find the values of t for which you are walking uphill (that is, z is increasing).
56.
z
=
2
x
2
+
y
2
+
1
,
C
:
x
=
1
+
cos
t
,
y
=
sin
t
;
0
≤
t
≤
2
π
For the system consisting of the lines:
and
71 = (-8,5,6) + t(4, −5,3)
72 = (0, −24,9) + u(−1, 6, −3)
a) State whether the two lines are parallel or not and justify your answer.
b) Find the point of intersection, if possible, and classify the system based on the
number of points of intersection and how the lines are related. Show a complete
solution process.
3. [-/2 Points]
DETAILS
MY NOTES
SESSCALCET2 7.4.013.
Find the exact length of the curve.
y = In(sec x), 0 ≤ x ≤ π/4
H.w
WI
M
Wz
A
Sindax
Sind dy max
Утах
at 0.75m from A
w=6KN/M L=2
W2=9 KN/m
P= 10 KN
B
Make the solution handwritten and not
artificial intelligence because I will
give a bad rating if you solve it with
artificial intelligence
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Numerical Integration Introduction l Trapezoidal Rule Simpson's 1/3 Rule l Simpson's 3/8 l GATE 2021; Author: GATE Lectures by Dishank;https://www.youtube.com/watch?v=zadUB3NwFtQ;License: Standard YouTube License, CC-BY