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OpenStudy (anonymous):
Algebraically find all the critical numbers of the function f(x)=xe^(-3x)
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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
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OpenStudy (anonymous):
well find the max of x*exp(-3*x)
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