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misha1227

  • 4 years ago

integral of 1/( e^(t+y) ) dy...?

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  1. imranmeah91
    • 4 years ago
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    equal integral of e^-(t+y) = e^(-t-y)

  2. imranmeah91
    • 4 years ago
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    u=(-t-y) du- -dy

  3. A7med
    • 4 years ago
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    =-1/(e^(t+y))

  4. misha1227
    • 4 years ago
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    what would du be if u = -t-y..?

  5. imranmeah91
    • 4 years ago
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    -1

  6. misha1227
    • 4 years ago
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    is it 1-dy..?

  7. imranmeah91
    • 4 years ago
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    -dy

  8. imranmeah91
    • 4 years ago
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    t is constant so its derivative is 0

  9. misha1227
    • 4 years ago
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    oo gosh ofcourse..thanks you!

  10. A7med
    • 4 years ago
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    e^(t+y) = e^t * e^y hint

  11. A7med
    • 4 years ago
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    and because e^t is a constant you can take it out of the integral and work with e^y

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