(1 point) Find the partial derivatives of the function f(x, y)cos(12 3t 6) dt
Use the limit definition of partial derivatives to compute the partial derivative of the function f(x,y) = 6 - 6x + 5y - 3x2y at a point (3,4). a. Find f,(3,4). b. Find f(3,4). 1,(3,4)=0 (Simplify your answer.) 12(3,4)=0 (Simplify your answer.)
Problem 9. (5 points) If z= sin (5), x = 3t, = 5 – tº, find dz/dt using the chain rule. Assume the variables are restricted to domains on which the functions are defined. dz dt = preview answers Problem 10. (5 points) Find the partial derivatives of the function f(x, y) = cos(-3t² + 4t – 8) dt y f1(x, y) = fy(x, y) =
4. Find the second partial derivatives for the function f(x,y) = x+yat (1,0). (6 Pts)
Problem 5. (1 point) Find all the first and second order partial derivatives of f(x,y) 7 sin(2x + y) + 9 cos(x - y). A. = fx(x,y) = B. = fy(x, y) = af C. ar2 = fcz(x, y) = af D. ay2 = fyy(x,y) = E. af деду fyz(x, y) = af F. მყმz = fxy(x, y) = Note: You can earn partial credit on this problem.
1.Find the partial derivatives of the function f(x,y)=(8x+8y)/(6x-7y) fx(x,y)= fy(x,y)=
2. [3 marks] Consider the function f(x,y) = log (– 2y). (a) Find the partial derivatives (b) Find an equation of the tangent (plane) to the surface of f at the point (3,1, f (3,1)).
Use the limit definition of partial derivatives to compute the partial derivative of the function f(x,y) = 2 - 2x + 5y - 3x?y at a point (3.4). a. Find f (3.4). b. Find f (3.4). f|(3.4)=0 (Simplify your answer.) 13(3.4)=0 (Simplify your answer.)
Find the first partial derivatives of the function. f(x, y) = 2x + 4y + 8 fy 2 fy = 2 X
(1 point) A. Solve the following initial value problem: dy dt cos (t)-1 with y(6) tan(6). (Find y as a function of t.) (1 point) A. Solve the following initial value problem: dy dt cos (t)-1 with y(6) tan(6). (Find y as a function of t.)
Compute all the first and second partial derivatives of the function g(r, t) = po cos(3t) - e5r ag ag drðt 02g at2