1. If f(x, y) = 3x + 7y2 and u = 3i+ 4j, find the directional derivative at point (1,1).

Q: Find the directional derivative of f(x, y) = exy in the direction u = (,) at (xo, yo): (0,1). 3545…

A: Given query is to find direction derivative.

Q: Find the directional derivative off at the given point in the direction indicated by the angle 0.…

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Q: Find the directional derivative of the function at the point P in the direction of the point Q. f(x,…

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Q: Find the directional derivative of f(x, y) = cos(x) + y² at (T,2) in the direction of (3, –4).

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Q: (3/5) What is the directional derivative Duf at the point (3, 1)? Let f (x, y) = x² - y and u =

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Q: nd the directional derivative of the function f(x,y)=2x²y²+3xy at the point P=(2,-3) in the…

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Q: Calculate the second derivative of the function y = f (x) defined by the equation x3 + y3 +3xy +…

A: Explanation:

Q: a) calculate the derivative of: f1(x) = 2x4 - 3x3 + ½x2 + 3 b) Calculate the equation of the line…

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Q: 9) y = e4x² + x A) dy dx 8xe2x + 1 B) dy - 8xex2 dx %3D + 1 C) dy dy - 8xe4x2 dx — 8хе + 1 %D D) + 1

A: We have to find

Q: Given that Vf(2, -13) = 2i- j, find the directional derivative of the function f at the point (2,…

A: The given problem is to find the directional derivative of the given function at point (2,-13) in…