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

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

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

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

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

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

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

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

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