(a) We found that f x (1, 1) = 2 for the function f(x, y) = 4...
Question:
(a) We found that fx(1, 1) = −2 for the function f(x, y) = 4 − x2 − 2y2. We interpreted this result geometrically as the slope of the tangent line to the curve C1 at the point P(1, 1, 1), where C1 is the trace of the graph of f in the plane y = 1 . (See the figure.) Verify this interpretation by finding a vector equation for C1, computing the tangent vector to C1 at P, and then finding the slope of the tangent line to C1 at P in the plane y = 1 .
(b) Use a similar method to verify that fy(1, 1) = −4.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Calculus Early Transcendentals
ISBN: 9781337613927
9th Edition
Authors: James Stewart, Daniel K. Clegg, Saleem Watson, Lothar Redlin
Question Posted: