Finding volume using cylindrical shells

[royal gust]

Blocked out the irrelevant work. Been working on this for an hour, using various websites and just can't get an answer. I can't imagine what would be wrong besides the limits of integration or the circumference/height.

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[dusky wren]

what have you done

[royal gust]

is this like a "oh my god what have you done" or are you asking for my work

the work is the stuff in the notebook

[dusky wren]

for work

like im asking how did you get what you did

[azure musk]

Do you have the final answer?

I proofread your calcs but I don't see any mistake until the evaluation of the integral

And then there might be a mistake

because Desmos doesn't agree with your bracket computation

what is that?

I feel like it shouldn't be there

[royal gust]

I don’t have the final answer, and the fraction doesn’t need to be there yeah

[azure musk]

I also found pi * (75/2 - 24)

[royal gust]

The assignment doesn’t let me check the correct answer, but I’m gonna email the professor to see if it’s right

[azure musk]

Sure, let me know

[royal gust]

Prof's official answer was 27pi/2, work attached

[azure musk]

75/2 - 24 = (75 - 48)/2 = 27/2