GATE 2023 MA – Question 52

Calculus · Multivariable Differentiation and Optimization · 2 marks · Multiple select

1. Directional derivative in direction (1/√2,1/√2) equals 1/√2.
2. Directional derivative in direction (0,1) equals 1.
3. Directional derivative in direction (1,0) equals 0.
4. f is not differentiable at (0,0).

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