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anonymous
 5 years ago
h(u)=square (9u^2)
I want to get the derivative.
Can't I take the 9u^2 out of the square and make it 3u?
anonymous
 5 years ago
h(u)=square (9u^2) I want to get the derivative. Can't I take the 9u^2 out of the square and make it 3u?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0o yes it can be written as (3u)(3+u)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0no... it isnt a square

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0(3u) (3u) does NOT equal (9u^2) it equals (9 6u +u^2)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0try using trig substitutions... sqrt(9  u^2); sqrt(9  (3sin)(3sin)) ; u=3sin sqrt(9 9sin^2) = sqrt(9(1sin^2)) = sqrt(9(cos^2)) = 3cos

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0the derivative of 3 cos is 3sin right? plug in your sin value now..

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0sin = u/3 ..thats what I meant :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.03(u/3) = u if I did it right....

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0or am i confusing integrals and derivatives.... one of these days Ill know when Im right :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0I get... 1/sqrt(9u^2) is that better?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0(9u^2) is not equals (9 6u +u^2) (9u^2) is equal to (3u )(3+u)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0and the sqrt((3u)(3+u)) is not (3u)...

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0formula is a^2  b^2 = (a+b)( ab)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0Is the sqrt(9u^2) = (3u)? No.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0I might be wrong on everything else I typed, but I know im right on this one :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0the sqrt(9u^2) is not equal to (3u) but sqrt(9u^2) is equal to (3u)(3+u)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0How so? 9u^2 is equal to (3u)(3+u) sqrt(9u^2) is NOT equal to (3u) square (3u) and get (9u^2) for me, just try it.... try it.... cant do it...

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0is [(3u)(3+u)]^2 equal to..... where was I?

radar
 5 years ago
Best ResponseYou've already chosen the best response.0Couldn't you just square \[(9u ^{2})^{2}\]

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0maybe..... just maybe...... are we allowed to? :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0[(3u)(3+u)]^2 equal to (3u)^2 (3+u)^2

radar
 5 years ago
Best ResponseYou've already chosen the best response.0Wouldn't that give you \[u ^{4}18u ^{2}+81\]

radar
 5 years ago
Best ResponseYou've already chosen the best response.0Then do the derivative\[4u ^{3}36u\]

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0.... im sure wali is right about something in this....

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0do we have to unsquare the derivative?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok u win the game but i m not wrong

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0lol ... but I was gonna concede :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0"Can I take the 9u^2 out of the square and make it 3u?" What was the answer?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0I chose "no" as well, but im not a reliable witness :)

radar
 5 years ago
Best ResponseYou've already chosen the best response.0Then simplifying getting\[1/4u[(u3)(u+3)]\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok by we will meet again because i have to prepare for tomorrow calculus paper by
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