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Mathematics 8 Online
OpenStudy (anonymous):

Algebraically find all the critical numbers of the function f(x)=xe^(-3x)

OpenStudy (anonymous):

well f'(x)=0

OpenStudy (anonymous):

exp(-3*x)-3*x*exp(-3*x)=0

OpenStudy (anonymous):

x = 1/3 I took derivitive and set it equal to zero and got that ^

OpenStudy (anonymous):

nope im confused...

OpenStudy (anonymous):

oh using algebra i forgot :P

OpenStudy (anonymous):

well find the max of x*exp(-3*x)

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