These problems are confusing me because the way they have each step listed out, and how they use dw. Can someone give me an explanation for these.
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For the first one:
So, we have f(x)dw = dx
but we need f(x) in terms of w.
We know that
And f(w) = 2w/25
Using this in the integral:
Can you continue now?
Thanks! Maybe if I hadn't been staring at this problem all day I would have realized I needed to integrate back to w. I think I can do the next one now
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