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RogueBest ResponseYou've already chosen the best response.0
Senx? What kind of math is this? :o
 one year ago

nbouscalBest ResponseYou've already chosen the best response.1
Is that supposed to be sin x?
 one year ago

nickymardenBest ResponseYou've already chosen the best response.0
sorry, it's in portugese :) and yes it is.
 one year ago

RogueBest ResponseYou've already chosen the best response.0
Probably. But what is the question asking for? Derive it from...?
 one year ago

nbouscalBest ResponseYou've already chosen the best response.1
Okay, so \(g(x)=(\sin x+\sqrt{x})^3\cdot\sqrt{x^4+2}\) and you're looking for \(g'(x)\)?
 one year ago

lgbasalloteBest ResponseYou've already chosen the best response.0
no wonder i have seen these sen x for a lot of times i thought they taught secret trigonometry to people ___
 one year ago

nbouscalBest ResponseYou've already chosen the best response.1
So, use the product rule and the chain rule, yeah? Which part are you getting stuck at?
 one year ago

nickymardenBest ResponseYou've already chosen the best response.0
i'm sorry for taking long. I was tryig to do it by myself. I just can't do it lol
 one year ago

nbouscalBest ResponseYou've already chosen the best response.1
Show us your work so we can see where you're getting lost.
 one year ago

nbouscalBest ResponseYou've already chosen the best response.1
First step, product rule, right? So \(f(x)=(\sin x+\sqrt{x})^3, g(x)=\sqrt{x^4+2}\), and we're finding \(f'(x)g(x)+g'(x)f(x)\)
 one year ago

RogueBest ResponseYou've already chosen the best response.0
\[g(x) = (\sin x + \sqrt x)^3 *\sqrt {x^4 +2}\]This gets messy...\[\frac {dg}{dx} = (\sin x + \sqrt x)^3 \frac {d}{dx} \left[ \sqrt {x^4 +2} \right] + \sqrt {x^4 +2} \frac {d}{dx} \left[ (\sin x + \sqrt x)^3 \right]\]
 one year ago

RogueBest ResponseYou've already chosen the best response.0
As nbouscal said, where do you get stuck?
 one year ago

nickymardenBest ResponseYou've already chosen the best response.0
yeah, i get lost in all the algebra.
 one year ago

nickymardenBest ResponseYou've already chosen the best response.0
i just erased it all, let me try again lol.
 one year ago

nbouscalBest ResponseYou've already chosen the best response.1
Take it one step at a time. First step is to find f'(x), so derive \((\sin x + \sqrt x)^3\) using the chain rule.
 one year ago

nickymardenBest ResponseYou've already chosen the best response.0
thank you for the help :))
 one year ago
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