Answer to Question #112767 in Differential Geometry | Topology for Akriti

Question #112767
a) Find the gradient of the curve at (2,-3)
b) what does your answer to part (a) tell you about the point (2,-3)
1
Expert's answer
2020-04-30T16:18:38-0400

Let us suppose we are given a function f(x,y,z)f(x,y,z) and we have to find the gradient of this function at a particular point

so gradient can be calculated by x(f(x,y,z))i+y(f(x,y,z))j+z(f(x,y,z))k\frac{∂}{∂x}(f(x,y,z))i+\frac{∂}{∂y}(f(x,y,z))j+\frac{∂}{∂z}(f(x,y,z))k

and after that we will substitute (2,-3) in it and we will get the value of gradient


If the gradient of a vector is not zero, then it will be perpendicular to the tangent line at (2,-3) of the curve that passes through the point, it tells us that the curve changes fastest in the direction of the gradient.


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