Mathematics · Calculus and Partial Derivatives
For a temperature function T(x, y), along which path is the directional derivative zero (i.e., temperature change is minimum along the isotherm curve where yx2 = constant)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1x = constant or y = constant
- 2yx2 = constant✓
- 3y2 + x2 = constant
- 4y × x = constant
Correct answer
yx2 = constant
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