Dominic and Edward want to investigate a differentiable function Q (2, v) and its level set at height 4: Q(a, v) - 4. (1) a) By differentiating both sides of the equation above with respect to and using the chain rule, they obtain the equation, S(z, v) + T(z,v) 0. (2) Dominic and Edward find that the function S(z, y) is: (choose the correct formula) and also agree that the function T(1,v) is: (choose the correct formula) Dz dy b) Suppose now that S and T are differentiable. To help Dominic and Edward, complete the sentence below. The first order differential equation (2) is Click far List because (choose the best option). as as as O Sand T are polynomials. O as O Qis a palynomial. c) Dominic has already found a function Q(z, y) satisfying the conditions in (a) above, and says it's now not necessary to check the condition you gave in (b) to determine whether or not (1) is exact. Edward disagrees and says that Dominic must still check your condition in (b) to determine whether or not (1) is exact. Who is right? O Edward is comect O Dominic is correct

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Author:Erwin Kreyszig
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Dominic and Edward want to investigate a differentiable function Q (z, y) and its level set at height 4:
Q(z, 9) = 4.
(1)
a) By differentiating both sides of the equation above with respect to z and using the chain rule, they obtain the equation,
S(z,y) + T(z,v) =0.
(2)
Dominic and Edward find that the function S(z, y) is: (choose the correct formula)
and also agree that the function T(1,y) is: (choose the correct formula)
b) Suppose now that S and Tare differentiable. To help Dominic and Edward, complete the sentence below.
The first order differential equation (2) is Click far List
because (choose the best option).
as
as
as
as
ST
O S and T are polynomials.
O Qis a palynomial.
c) Dominic has already found a function Q(z, y) satisfying the conditions in (a) above, and says it's now not necessary to check the
condition you gave in (b) to determine whether or not (1) is exact. Edward disagrees and says that Dominic must still check your
condition in (b) to determine whether or not (1) is exact. Who is right?
O Edward is correct
O Dominic is correct
d) Given that S(z, y) = 18z?y + 6y2 + 1, T(z,y) = 6 23 + 12zy + 4 and that (1, 1) is on the level set equation (1). find
Q (z, y) and write it in the box below.
Q (z, y) =
e) Compute the slope of the tangent line to the level set (1) at the point (1,1) and type its exact value in the box below.
slope =
Transcribed Image Text:Dominic and Edward want to investigate a differentiable function Q (z, y) and its level set at height 4: Q(z, 9) = 4. (1) a) By differentiating both sides of the equation above with respect to z and using the chain rule, they obtain the equation, S(z,y) + T(z,v) =0. (2) Dominic and Edward find that the function S(z, y) is: (choose the correct formula) and also agree that the function T(1,y) is: (choose the correct formula) b) Suppose now that S and Tare differentiable. To help Dominic and Edward, complete the sentence below. The first order differential equation (2) is Click far List because (choose the best option). as as as as ST O S and T are polynomials. O Qis a palynomial. c) Dominic has already found a function Q(z, y) satisfying the conditions in (a) above, and says it's now not necessary to check the condition you gave in (b) to determine whether or not (1) is exact. Edward disagrees and says that Dominic must still check your condition in (b) to determine whether or not (1) is exact. Who is right? O Edward is correct O Dominic is correct d) Given that S(z, y) = 18z?y + 6y2 + 1, T(z,y) = 6 23 + 12zy + 4 and that (1, 1) is on the level set equation (1). find Q (z, y) and write it in the box below. Q (z, y) = e) Compute the slope of the tangent line to the level set (1) at the point (1,1) and type its exact value in the box below. slope =
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