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Punchy
Punchy asked in Science & MathematicsMathematics · 2 years ago

How do you differentiate |r(t)|^2?

2 Answers

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  • ?
    Lv 7
    2 years ago

    |r(t)|^2= x^2+y^2+z^2. The derivative will be 2(x dx/dt+y dy/dt+z dz/dt). This will be the answer.

  • Pope
    Lv 7
    2 years ago

    d/dt |r(t)|²

    = d/dt r(t)²

    = 2r(t)r'(t)

    Not having a definition for r(t), that is as far as it can be carried.

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