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===== Homework for Symmetries =====

  - (DirectionalDerivative) {{page>homework:ph320422questions:directionalderivative}}
  - (GradientPractice) {{page>homework:ph320422questions:gradientpractice}}
    - {{page>homework:ph320422questions:gradientpracticea}}
    - {{page>homework:ph320422questions:gradientpracticeb}}
    - {{page>homework:ph320422questions:gradientpracticec}}
  - (GradientPtChargeOrigin) {{page>homework:ph320422questions:gradientptchargeorigin}}
    - {{page>homework:ph320422questions:gradientptchargeorigina}}
    - {{page>homework:ph320422questions:gradientptchargeoriginb}}
    - {{page>homework:ph320422questions:gradientptchargeoriginc}}

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