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File: u-sub.png (53 KB, 377x378)
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How does this u squared substitution get me the negative four term in this equation? I need to see it to visualize it.
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>>16892754
Weird questions like this make me assume it's an AI LLM bot. It's just not quite human.
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>>16892769
Would an AI LLM bot need to be educated? It would just process it and spit out the answer.
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>>16892754
Get your notebook out and expand out the algebra yourself. This is the right thing to do for any math text, you shouldn't expect to be able to just read it like a novel
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>>16892754
>How does this u squared substitution get me the negative four term in this equation?
r = u^2 + 2*m

–1/(1 – (2*m)/r) = –(u^2 + 2*m)/u^2

dr = 2*u*du
(dr)^2 = 4*u^2*(du)^2

Thus:
–1/(1 – (2*m)/r)*(dr)^2 = –4*(u^2 + 2*m)*(du)^2

Don't you know anything?
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>>16892909
I didn't know how to break up the problem and put it back together. That's for sure. I see it now.
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Try using the button that describes squares
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File: trumps intelligence.jpg (17 KB, 250x167)
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>>16892943
>I didn't know
"Tell it to the judge."

Not everyone who takes the bait is unaware that it's bait.
Scrabble posing as differential calculus posed by wolves posing as sheep.

A while back, there was a Scrabble in integral calculus's clothing thread posed by a wolf in sheep's clothing.
But his thread was less negative.
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>>16892909
>dr = 2*u*du
>(dr)^2 = 4*u^2*(du)^2
don't tell me physicists actually do this
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>>16893237
problem?
see >>16883978 for the designated mathfag seething thread.
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>>16893237
>>16892909

dr = 2*u*du
d^2r = 4*u^2*(du)^2

There. Happy?
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>>16893924
i'm not happy until i see a tensor product
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>>16892770
right
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>>16893941
I know, right?



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