Suppose that f(x,y) is a function of two variables with
fx (0,2) = 2 and fy (0,2) = -1
Using the chain rule, compute the numeral value of f theta ( r cos theta, r sin theta)
at r = 2, theta = pi/2
I know that if you sub the values of r and theta into f (with respect to theta, given above), you get the point (0,2).
I don't know how to make the connection, and therefore get the answer!
thanks in advance =)