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Rogue
 2 years ago
Best ResponseYou've already chosen the best response.0Senx? What kind of math is this? :o

nbouscal
 2 years ago
Best ResponseYou've already chosen the best response.1Is that supposed to be sin x?

nickymarden
 2 years ago
Best ResponseYou've already chosen the best response.0sorry, it's in portugese :) and yes it is.

Rogue
 2 years ago
Best ResponseYou've already chosen the best response.0Probably. But what is the question asking for? Derive it from...?

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

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

nbouscal
 2 years ago
Best ResponseYou've already chosen the best response.1So, use the product rule and the chain rule, yeah? Which part are you getting stuck at?

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

nbouscal
 2 years ago
Best ResponseYou've already chosen the best response.1Show us your work so we can see where you're getting lost.

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

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

Rogue
 2 years ago
Best ResponseYou've already chosen the best response.0As nbouscal said, where do you get stuck?

nickymarden
 2 years ago
Best ResponseYou've already chosen the best response.0yeah, i get lost in all the algebra.

nickymarden
 2 years ago
Best ResponseYou've already chosen the best response.0i just erased it all, let me try again lol.

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

nickymarden
 2 years ago
Best ResponseYou've already chosen the best response.0thank you for the help :))
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