Calc 2 Improper Integrals: I don't see what I got wrong? | Mathematics | Page 1

eager garden Mar 3, 2023, 7:06 PM

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Can someone help explain to me what I got wrong here? I've worked out the math several times and I don't see any other solution.

blazing nestBOT Mar 3, 2023, 7:06 PM

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wraith stirrup Mar 3, 2023, 7:16 PM

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how'd you get 0.9?

gilded meadow Mar 3, 2023, 10:04 PM

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eager garden Can someone help explain to me what I got wrong here? I've worked out the math s...

Damn, why all these questions were students only need to fill in the answer.
How about writing down what you did you calculate it? Then we can also see what you did wrong.

eager garden Mar 3, 2023, 11:26 PM

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oh sorry

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i’ll add more

eager garden Mar 4, 2023, 12:29 AM

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Ok

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I took the integral of 2/x^3, which is -1/x^2+C.

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And I substituted in 10 and 1.

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(-1/10^2)-(-1/1^2)= -1/100+1/1=99/100=.99

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then substitute 100 and 1000

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for .9999 and .999999

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and then it's just a normal improper integral and also obvious that the total area will be 1

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this makes it even more confusing

eager garden Mar 4, 2023, 1:14 AM

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nvm uh I guess I figured it out

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it was 1.8, 1.98, 1.998,

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very odd

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\solved

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.solved

#Calc 2 Improper Integrals: I don't see what I got wrong?