Find the directional derivative of the function z(x, y)=etan(y) + (x + 1)²sin(2y) at the point P(0, 7/4) in the direction of vector a = i + j√3. Present your answer in the exact form (don't use a calculator).

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Find the directional derivative of the function
z(x, y) = e³tan(y) + (x + 1)²sin(2y)
at the point P(0, 77/4) in the direction of vector a = i + j√3.
Present your answer in the exact form (don't use a calculator).
Transcribed Image Text:Find the directional derivative of the function z(x, y) = e³tan(y) + (x + 1)²sin(2y) at the point P(0, 77/4) in the direction of vector a = i + j√3. Present your answer in the exact form (don't use a calculator).
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