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anonymous

  • 5 years ago

A current is defined as i(t)=2e^(-t/3)u(t) .What is the total area under the curve for 0<t<∞?

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  1. anonymous
    • 5 years ago
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    let v = (-t/3) I'm assuming that u(t) is dt, but if it is another function then that eq would be the area under a surface. dv =-(1/3). the area under i(t) =-6* integral e^vdv = -6e^(-t/3), then sub in your limit values to get your answer

  2. anonymous
    • 5 years ago
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    My possible answers are 2/3, 2,5 and 6.Which one you think should be correct? Thank you!

  3. anonymous
    • 5 years ago
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    it looks like it should be -6, but that is not an option. I can't call it.

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