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swissgirl
Group Title
What is the fourth derivative of \(f(x)=3xe^xe^{2x}\) ?
 2 years ago
 2 years ago
swissgirl Group Title
What is the fourth derivative of \(f(x)=3xe^xe^{2x}\) ?
 2 years ago
 2 years ago

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bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
well f'(x*e^x) = x*e^x + e^x = e^x(x+1). So: f'(x) = 3e^x(x+1)  2e^(2x) f''(x) = (3xe^x+3e^x  2e^(2x))' = 3e^x(x+1)+3e^x  4e^(2x)
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
f'''(x) = (3xe^x + 3e^x + 3e^x  4e^(2x))' = (3xe^x + 6e^x  4e^(2x))' = 3e^x(x+1) + 6e^x  8e^(2x)
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
I think I made a mistake in f''(x)
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
No i didn't
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
You made a mistake somewhere
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
f''''(x) = (3xe^x+3e^x+6e^x8e^(2x))' = (3xe^x + 9e^x  8e^(2x))' = 3e^x(x+1)+9e^x  16e^(2x) <Final answer
 2 years ago

swissgirl Group TitleBest ResponseYou've already chosen the best response.1
Btw u didnt go wrong
 2 years ago

swissgirl Group TitleBest ResponseYou've already chosen the best response.1
Thankkksss Bahhhrrrooommmmmmm
 2 years ago

bahrom7893 Group TitleBest ResponseYou've already chosen the best response.2
Hero.. like i said.. ignore me.
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
Yeah, that's the correct answer
 2 years ago

Hero Group TitleBest ResponseYou've already chosen the best response.0
Why do you want me to ignore you @bahrom7893
 2 years ago
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